Possible lines of interest:
8213.170:0130:0134:err:ole:StdMarshalImpl_MarshalInterface Failed to create ifstub, hr 0x80004002
8213.170:0130:0134:err:ole:CoMarshalInterface Failed to marshal the interface {ea1ea136-19df-11d7-a6d2-00065b84435c}, hr 0x80004002
8213.170:0130:0134:warn:seh:dispatch_exception unknown exception (code=80004002) raised
The interface is ITfUIElementSink
New update for the game adds game devloper adding Steam Deck support - as such - Proton support is now there. (yay)
proton 7.0-3x1 2022-08proton experimentalx1 2022-08proton7.0-3x1 2022-080x80004002x1 2022-08
Compatibility Report
System Information
GPU: AMD AMD Radeon RX Vega
Driver/LLVM version: LLVM 14.0.6, DRM 3.47,
Kernel version: 5.19.0-2-MANJARO
Link to full system information report: system-report.txt
Proton version: 7.0-3 and Experimental
I confirm:
steam-1224290-proton7.0-3.log
steam-1224290-proton-experimental.log
Symptoms
Under Proton 7.0-3: Game does not open, but does not exit. Manually stopping the game via Steam's "STOP" button works.

Under Proton Experimental: Game loads, but title screen does not load properly and shows a Blue screen only. Title music plays in the background.
Screen Grab:
Reproduction