Ignorant here. Would mining rigs work for this?

Not really. It prevents countries from bearing the burden of maintaining other nation’s unemployed, incapacitated, etc…

I have to have Windows, a VM at least, for reasons.

A nameless install, decrapified with Chris Titus’ decrapifier, installer and streamliner script is actually decent

Is waterfox compatible with all or most firefox extensions? Also, can you import a firefox profile, and share between devices? I’m fairly invested in firefox, and would hate loosing functionality

“most move on”?

Source? because I believe it’s quite the opposite.