Two most common reason for Proton not working are:
Running games from NTFS or other incompatible file system.
Issues with GPU drivers.
Anyway, we are just guessing here without logs.
Set PROTON_LOG environment variable, eg. “PROTON_LOG=1 %command%” in launch options of Steam for the game. Log will show in your home dir. See Runtime config options part of the Proton README for more info.
https://github.com/ValveSoftware/Proton/blob/proton_10.0/README.md#runtime-config-options
You could also point Steam custom launch command to PortalWars2Client.exe and leave the files as is, but I suppose you still could be banned.
Proton github has a possible workaround.
Here’s my suggestion.
First, check your RAM with Memtest86+ or similiar tool. This is the first test because failing memory can and will corrupt your whole system, and it’s easy to test.
Second, if RAM is fine, check the logs. This is more effective then just guessing. Just copy-pasting possible errors to your favorite search engine usually points to the right direction. Archwiki has a nice tutorials about logs.
Third option is to test components one-by-one. Remove all unnecessary components, such as extra SSDs/HDDs, wifi cards, USB devices and PCIe cards. If it doesn’t help, test your CPU and GPU by running dedicated CPU and GPU benchmark tools. If you still get hangs, try with another PSU. If your components test fine, it’s likely a driver issue. See Arch wiki article on Nvidia troubleshooting for some tips about that.
Your last option is pure guessing. It’s the most time and money consuming way to debug with the smallest chance of success, but still many people prefer it. Most often issues like these are GPU issues, so it’s a good guess. However it’s still a guess.
I hope this helps.
Maybe try bleeding edge. See,
Acording to SteamDB, there has been no updates. I didn’t manually check all of the 355 depots though. I’d guess it’s either shader cache, corrupted game files, or a bug in Steam.
I used to run Steam BPM under steamcompmgr, and had Kodi as a shortcut via “add a non steam game”. You could do a browser similiar way. steamcomomgr is a X window manager that handles scaling for those small dialogs for TV screen. Gamescope is similiar for Wayland.
Now I have Debian stable running plasma-bigpicture, which is a KDE set up for TV screen. Flatpak gives the latest Kodi and other apps that the OS doesn’t keep up to latest version, and I do enjoy the stability of the underlaying OS for HTPC use.
Which is better? It depends. If you do mostly games and Kodi, and use a game controller for controll, then Steam BPM. It has a controller friendly OSD keyboard for text, and the upscaling of starting dialogs especially for older games if a nice feature. For youtube, this may not be the best option, and it needs a bit more work to set this up for the Display manager as a xsession.
Plasma-bigpicture is nice if you want to run apps made for traditional desktop, and have a keyboard and mouse. Say for youtube you may want to use some unofficial players to get rid of ads. You can set Steam to auto-start on the background to get game controller input working on the desktop. Setting this up is as easy as installing one package, and switching the session via login manager.
Ofcourse, you can have both and switch from you login screen. You can’t have Steam running on the login screen for that game controller friendly keyboard for login, but you can set automatic login for the one you use most, and switch by logging out.
As for distro, pick the one you like most and know your way around.
I hope this helps, have fun.
Regardsless what distro you end up with, do your research before bying new hardware. Any hardware, such as keyboard, usb bluetooth adapter or gaming audio headset might be unsupported or supported poorly, and require out-of-kernel drivers, firmware or propietary vendor software, that work only with some kernel versions or certain distros. There often are options that have great linux support and work with any distro, but you’ll need to find them.
Pick your prefered update interval between LTS, 6 month point release or rolling based on how much time you have for administration. If you need you PC also for work, a rolling distro might break just when you need it the most. After choosing the update interval, pick the distro with chosen update interval you like the most. Say you know and like Debian but need a rolling distro, then Debian unstable might be a good choice for you. You can also run multiple distros and dual-boot.
Special purpose distros such as gaming distros can be a good choice, but they often have less developer resources and tend to die then the few developers lose their interest.
Regardless of your choice of distro, spend some time to configure regular backups.