The app will complain if the server has an incompatible version. Have had it happen a few times, but usually two or three minor versions difference should be okay.

Integration at a level a browser can’t offer. Most importantly, imo, a browser can’t bind global keyboard shortcuts for websites. So push to talk, mute keybinds, … don’t work in the browser version.

Or any global shortcuts (i.e. to mute oneself) for that matter. Pretty useless in a gaming context because of that imho

Raid and off-site backup.

Or trust in a hosting provider that has backups and redundancy.