


40FPS limit and turned settings to lowest
Occasional Crackling would start after having the game open for a few days going into standby mode instead of closing at the end of play sessions. Restarting game fixed the issue.

40~ fps for Kamurochō and Yokohama, rough 30~ fps with significant stuttering in Hawaii.

All things considered, the game runs well enough. There are compromises, mostly in the liberal use of FSR2 (enabled by default in quality mode), which can only do so much at such a low internal resolution. Artifacts are plenty, but the game looks good enough considering it is a current gen title. Lowering resolution scaling instead of using FSR2 produces a more stable, but also blurrier image, so it will depend on preference. It is possible to lower shadows, disable SSAO and real time reflections to smooth performance a bit, but once Hawaii is reached, it is difficult to keep the game consistently above 40fps regardless. Capping at 30fps seems to be the way to go here, and for those who are not completely averse to it, motion blur can help smooth things in motion a bit. I advise against using frame generation which chews through the limited VRAM of the Deck and introduces a lot of jittering. Expect some lag spikes when new areas of the open world load in the background as well, but they are extremely short.
Cutscenes, of which there are A LOT (I mean it!) do look good even with FSR2 and characters models look particularly great. Battery life is around 3h, which is pretty good for a game of this scale.
Sidenote, but at launch, the game was reversing every single button prompt (cancel and confirm included) if you used the Nintendo layout on Steam Deck like I do. This seems to have been adressed since and the game now behaves perfectly out of the box. You can even remap the combat wheel in the menu to fit the Nintendo layout, which is all too rare even in Japanese games. Excellent point for those with the same controller preference as me.

Steam Deck: 30fps lock due to frequent stuttering/pausing in Hawaii. other locations can run at 40fps. FSR adds ghosting, XeSS works better
Mix of low/30fps due to frequent stutters in Hawaii

Loading and Saving data works well. As a minor problem, I could not delete saved data on Deck OLED. Syncing latest saved data (but probably not all data) via Steam Cloud seems working well.
This game performs good with default settings (medium quality), most time >55 FPS (no battery optimization, or >16 Watt on average); even for worse cases (such as many people on street of "honolulu"), >35~40 FPS could be achieved. I personally spent and enjoy more time on battle and in-game cutscenes, so I perfer capping FPS to 60. No major bugs found and no game crash encountered. Really enjoyed playing on Deck.
On 1280x800 screen, much higher quality is also playable (generally >40 FPS), given that AMD FSR is activated. Also, on 1920x1080 screen, even medium quality could be overwhelmed; much more aggresive AMD FSR setting is probably required.
This game seems not suitable for frequently changing output display. Pluging to other displays after opening the game, may cause some strange display behavior. So make sure the game starts after desired display monitor prepared.

Game performs well overall. The game's performance drops dramatically after reaching Hawaii, maintaining a stable 40FPS cap is difficult without making serious sacrifices.
These are my recommend settings:
Medium preset Set Resolution scale to 90% Disable any kind of FSR 30 FPS cap
FSR, even at Quality, really destroys the look of the image, making it look all kind of crusty and jagged. You won't reach 40 FPS with FSR Quality anyway, just avoid it and adjust Resolution Scale.
Worth mentioning is the Ultrawide fix mod at https://www.nexusmods.com/likeadragoninfinitewealth/mods/20?tab=description, it removes those annoying letterboxes the game puts on every cutscene (and there are a lot of those). There are some visual anomalies caused by it but nothing major.

Performance isn't up to snuff for me; but a casual gamer probably wouldn't have a problem.
40 FPS cap
The bug relating to English voice lines staying even if you use Chinese or Japanese is still present; but as said by Ya like VR abs?, changing the langauge from Japanese to English and then back to Japanese fixes the issue entirely.
Force Half Rate Shading makes the overall image fuzzy.
Game on Default settings struggled to stay above 30FPS (64 Gig LCD Model fyi); not really an enjoyable experince for me; but isn't game breaking due to it being an JRPG. FSR 3 FG is broken; avoid because its a stuttery mess.
The inconsistent frame rate made it hard to switch between the smooth experince on my PC to my SD; but if you have no other option is still is very playable if you want to knock the settings further down from the default.

Run well on steam deck with barely ay graphics changes, if you want smooth gameplay, may have to limit to 30fps.
Game runs well in Yokohama, but performance degrades greatly in hawaii

Limited FPS to 50.
RGG's optimizations to the Dragon Engine translate amazingly on the Deck. You can get 60FPS this time!!
tdp 12

40Hz refresh rate
Works great with no tinkering on Steam Deck. Without doing a side-by-side comparison, the performance feels very similar to how I remember Yakuza: Like a Dragon performing. Runs well on medium graphical settings so far, though I'd suggest setting the refresh rate to 40Hz in the Steam Deck performance settings to smooth out the frame rate.

Used a Dualsense controller, so changed the create button to select for map usage
Definitely deserves the verified rating. Am playing this game docked to a 1080p monitor, so I'm using the high preset with FSR 3.0 Quality (can also use native AA if you hate the artifacts) and motion blur and SSAO off. Capped @ 30fps via steam overlay. Game runs flawlessly with only minor (and I mean minor) drops. Deserves the verified rating. Great to see RGG continue to make quality PC ports of these games

Run at 50/60fps out of the box in medium + fsr 2 quality, you can go as far as running it maxed out and locking the fps at 40 fps/40hz, the added input lag barely matter since this entry is turn based unlike Gaiden or others, highly recommended for the Deck.