i do the multiple browsers thing, but it's firefox, firefox developer, and librewolf (i also have a seamonkey and a waterfox on one system). and they can all run at the same time without conflicting with another.

the few instances where i need a chromium-based one, it's a fresh 'install' of a portable 'alternative' like vivaldi or opera from portableapps (or via appimage on linux) and then deleted when i'm done with it.