SteamOS 2.121 Adds Flatpak Support

[nanonyme]

Flatpak provides sandboxing, and having a way to run steam and all its games sandboxed would be nice. AFAIK flatpak'ed and unofficial version of steam exists, and it has many issues (many games won't work). I don't trust proprietary software to run it without proper limitations, especially those with network access. I hope this will work out, would love to join steam finally.

One of the current major issues is people have 64bit OS and as a result need multilib Flatpak. This concept was unexpected by Flatpak devs and needs more ironing out. Apparently they're going to brainstorm this at GUADEC if I understood correctly

[OneBitUser]

you clearly didn't see feral launcher

True, even though I do play some of their ported games.
But, as I've said: there are some launchers with useful features, but more often than not they are just another online leash on the user.