Yeah, I’m thinking about doing some really weird shit by sharing the steam folder between users and then mounting compatdata inside each /home so that save files from proton games are individualized.

Sadly this requires a more traditional distro instead of ChimeraOS or HoloISO, which I didn’t really want, but it offers more possibilities later down the line

The issue is that AFAIK there is no way to get an event when the Steam user is swapped

It depends on the game. If the game uses Valve’s recommended file path there’s no problem. If the game uses Steam Cloud it will sync your save file with what it should have.

Those distros are basically focused on offering a console like experience on Linux, as in, a machine that is hooked to a TV, has no keyboard or mouse and only method of input is a gaming controller. They all start directly into Steam Big Picture mode, and there’s a single system user, all users are Steam Users. This works, but has the issues with save files I’m trying to get a solution that hopefully doesn’t involve changing to a traditional distro

Afaik it isn’t an option in SteamOS/HoloISO/ChimeraOS and would require a more “traditional” distro to be used, which does fixes those issues, but now we have other issues, like how those distros aren’t made to be used as consoles, and there’s the issue with Steam Family Sharing (as I understand, you need to be logged with the Steam Account in each system user you wish to share the library with)