I have no desire to run my own email, I've had enough trouble just sending email via a third party service. Proton support were really good, helping me troubleshoot what turned out to be sort of my problem (sending was getting routed through my VPN). I was actually surprised they told me the reason my emails were blocked (blacklisted IP).

Tuta has been an interesting experience. The apps feel weird, the website doesn't have a button to achive emails (the app has a swipe action), and they don't have a function to auto-forward emails to another address (though I have my own domain, some addresses at this domain I normally have set up to forward to my wife who has a normie email). Their email import is also a top tier premium feature, not available on the free or even standard paid level plan. I have no idea why they would make it hard to move to Tuta.

I also want to integrate with Paperless which I can do with Proton via their bridge but Tuta doesn't provide a bridge for this.

I keep finding reasons not to stick with it 🙁