I moved my email to Fastmail, and I’ve been very happy ever since. But now that I own the domain, moving to a different provider - if I ever need to - would be trivial.
- create a new email address somewhere else, preferably with your own domain
- redirect all your emails to your new account
- send an auto reply: "I don't use this email address anymore, and I may not see this email. My new address is XXX"
The third point is a lie that nudges people into updating their addressnook a lot faster. If you just silently redirect they might not even notice. But you can explain in a sentence why you are doing this.
This redirect+auto reply can be left in place forever.
Now I only use Windows for legacy software that my customers force on me.
Fedora has not just been liberating, but jaw dropping. I actually felt offended that I had wasted so much time on debian-family/ubuntu/mint and windows.
The concept, way back when, was great. I tried to use it, by a previous name, for replicating / distributing data backups and it always worked great... for a few days, maybe weeks. And then something unrecoverable went wrong, and I had to re-set it up essentially from scratch and it worked great... for a few days, maybe weeks. And then something unrecoverable went wrong.
In the intervening 15+ years, OneDrive has never made my experience of computing better. It has only ever nagged, slowed, and failed. And that was before Microslop went down the x% AI coding path.
Imapsync is your best friend for this, as far as syncing the new account with the old one.