Cutscene wont played and only the black screen appeard (every single KT games run with proton had similar issue with this)
The game itself quite playable, getting 30fps on 1080p and 60fps on 720p. However, i feel like there is slightly perfomance impact on linux proton which is running more...smooth on window.
Proton 5.0-4
Distro:Pop!_OS 19.10
Kernel:5.3.0-20-generic
RAM:16 GB
GPU Driver:NVIDIA 435.21
GPU:NVIDIA GeForce GTX 1050
CPU:Intel Core i7-2600 @ 3.40GHz
Otogy~(110 reports)56 hours overall(< 15 minutes with Proton)