This threads got lots of good answers, but I haven’t seen it mentioned that snaps sometimes mean reduced functionality.

Use the docker snap? Sorry, it can only access your home directory so no -v /some/path:/somewhere for you

Use firefox or chromium and keepassxc? Sorry, your browser plugin won’t be able to talk to your password manager

And the updates… dear god. In whose mind was it a good idea to show a “firefox is updating, exit now to avoid issues” TWO WEEKS im advance. Closing the app does precisely fuck all unless you manually snap refresh it

Containerised applications are a fine idea, but snap is a horrible implementation of it

If you’re self hosting (i.e. running it for yourself, your family members and maybe some friends), your use would fall under GDPR’s household exemption

does not apply to … the processing of personal data by an individual in the course of a purely personal or household activity

Thats Article (2)(2)a.

Of course, if you’re taking money or making it available to the general public it’s a different matter.