Add Non-Steam-Game (.exe) fails

[Sturmlocke86]

Hey there, I am experiencing a similar issue to this one: https://github.com/flathub/com.valvesoftware.Steam/issues/940

• Steam is installed as Flatpak on my main drive A
• None-Steam-Game install.exe is located on my secondary drive B
• I have given access to the secondary drive B and all of its folders via Flatseal
• Steam is able to see the install.exe and its folder
• I open Steam and try to install the game via said .exe, which actually works just fine
• After installation, I head over to Steam and manually select the .exe that makes the game run from its install dir on the secondary drive B
• Nothing happens, the game doesn't launch
• Tried with Proton Exp and Proton Exp community edition, same issue
• Tried with Proton 7 and Proton 7 comm ed, same issue
• Installed the game on the main drive by performing the same steps as above, same issue, game installs fine but won't launch using its run.exe
• Tried giving Steam Flatpak access to my home folder and all other file systems via Flatseal, doesn't work, Steam doesn't even launch when doing this (I assume for security reasons)
• Running openSUSE TW
• Doing this with a native Steam installation works just fine

Any ideas what could be causing this? Ty

[cleveHEX]

It's working for me, I have installed epic Launcher this way.