i've got an update on this issue:
The Mouse is still useable in menus, but the pointer won't be drawn. But you can force it to be drawn again by closing the menu and reopening it.
After i started using the latest release of dxvk (0.96) the mouse only vanished if i used my steam controller to navigate the ingame menus. i'll attach a debuglog from the game as well as a proton_log
both logs are from a session where i used the menues with my controller, which emulates a mouse several times, the cursor always vanished. after that I used the menu two times via keyboard and mouse, the cursor stayed visible when i did this.
Nothing extracted yet.
Compatibility Report
System Information
I confirm:
Symptoms
The Game stops responding to Mouse input while in Menues after extended periods of play
Reproduction
play for arround 30 Minutes and try to use the ingame Menue
This a logfile produced by the game
output_log.txt