Can you scan with MalwareBytes now?
I could continue doing that if you'd like, but right now
it seems that Chrome is working... No weird behavior, no redirects; WebSearch doesn't re-appear...
At some point or after a certain reboot it must've gotten fixed...
Well then! Thank you for your help, I can finally stop using Internet Explorer and get back to using the extensions I like

Seriously,
thank you. If I experience any weird behavior I'll come back to this thread/ make a new one if it's entirely different behavior.