It wasn't Devuan, it was MXLinux that I had issues with back in the day. They DO Install systemd, but it's just for compatibility (supposedly). It uses alternatives behind the scenes. Had numerous Proton issues, with games like Mass Effect, Fallout: New Vegas and 4, Dragon Age, and a few others. ProtonDB showed they SHOULD work, but for whatever reason, they didn't. The forums pointed to the lack of running systemd interfering with Proton. Not sure if it was the issue, but when I switched to distros that do use Systemd, like Mint, Manjaro, or straight Arch, they all worked perfectly. As a matter of fact: I almost NEVER use the Linux native build for Steam games, cause in almost every instance the Windows version will work better. I think the only games I use the native for is Stardew Valley and DOTA2. I'm on Manjaro now. Game heavily. Everything I throw at it works, or only needs minor tweaks. Ryzen 5800X, 32GB ram, Nvidia 2070 Super. Not SUPER modern, but good enough to run basically anything modern at at least medium settings. My wife and son have similar builds, except the video card. Wife has a 6600XT, and son has a 6800XT. Both run as well as I do.