

I run mine on a Intel N100 based mini PC from Beelink running Proxmox. It’s just about the only thing it does at the moment so I’ve had no concerns about bottlenecking.
It’s much more powerful than a pi and costs a not too dissimilar amount to one after you factor in a case, storage, power supply.
Firefox has a new profiles experience in v138 and up. Each can have its own extensions and settings. If you’ve got more than one you can switch in the taskbar. The only thing you might be missing is using multiple profiles at once?