As someone who works in security, I don’t personally recommend self hosting your password manager unless you’re planning on never opening it up outside your network or you’re willing to be on top of all potential security issues. These are your account credentials we’re talking about. You WANT them safe, and the people paid to make sure they stay secure are likely going to do a better job than you.

All 64 but cpus can run 32 bit processes just fine, and many distros enable multilib, or have some sort of alternative (e.g. SNAP) by default. Only distro I’ve had to do that on is arch… And that’s a DIY distro, so that makes sense.

That, itself, doesn’t really make using steam and more difficult