Outlook is just choosing another big tech. Why not something like protonmail or tutanota?
I’m starting to switch over to Proton. I haven’t paid for it yet but my plan is to start paying and potentially grab usernames on other sites so I can have a consistent email across any site I decide to use.
Proton unlimited was one of the best decisions I’ve ever made. Very nice vpn service that works even on arch Linux on school wifi (making sure to switch to tcp protocol), e2ee mail that I use to send confidential medical records to drs, included simplelogin premium (currently over 400+ aliases), excellent and knowledgeable customer support, and so much more. I just really love this company and their role in the FOSS, privacy, security space.