


Frame Limit: 60 FPS (60Hz)
TDP Limit: 5 Watts
On initial startup it seems the menu can only be navigated using mouse and keyboard, so hold the Steam button and use the right track pad + R2 to click.
Game has full controller support, but in-game button prompts remain as mouse and keyboard
Initial startup will ask to install PhysX. Hold the Steam button and use the right trackpad to move the mouse cursor, and R2 to click.
Once in-game the video options are shown. Options changed:
Aspect Ratio: Widescreen
Resolution: 1280x800
On the main menu enable gamepad support by selecting Help and Options -> Input Options Gamepad: Yes
Quit and start the game again, gamepad input will now work to control the menus.

One of files antivirus fired as trojan, so may be need some work to install game.
Played with Proton 5.0-10 (needs to install PhysX).
Played two missions with no issues, also tested with "PROTON_USE_D9VK=1" and "MESA_LOADER_DRIVER_OVERRIDE=iris", runs flawlessly.

After first launching and prompted to install physx, the game is playable minus controller support.