I was considering tutanota but it felt too small and lacking some features that proton seemed better for. I may look at it again.

I cannot move from simple login though. I bought a lifetime plan which also includes proton pass and i use simple login extensively now.

I do use a custom domain but not for most things which i use simple login domains. My custom domain uses my full name and i dont want that associated with some random newsletter or game company etc. But important services are on my custom domain so not the end of the world and can change them all. I dont know who could replace simple login though.

Ffs. I just switched a ton of stuff over to proton. Hopefully this is an individuals view and not that of the company as a whole.