EDIT: I removed the ‘deb’ file link etc since as others mentioned below it appears there is a more proper way for Debian given the official installation instructions and it’s the newest v0.5.18.
I’m using Debian testing, which is not that much behind (1 minor version atm). It is also possible to use some packages from testing in stable with proper pinning, but you have to be careful about dependencies. Lutris should be ok, I had it installed this way few weeks back.
Honestly, I’d rather suggest some more safe methods though, but this is option as well.
If the version from trixie works that’s a reasonably safe way as long as you know how to handle apt pinning (important!). sid might be even better.
But since strycore’s repo is recommended by Download Lutris I think that’s the best way for people that have no experience with pinning. I just saw that there’s a Debian 12 repo version now so I’ll switch to that.