Proton email has huge improvements in usability also like:
A search function that actually works and is intuitive
The ability to actually block accounts rather than sending them to spam
Ability to block entire domains
"All mail" actually contains all mail (like, wow!)
Etc. I still have to use Gmail for work and the number of times I just say “oh I must have missed that” due to the sheer volume of spam in my inbox and the inability to filter anything effectively or find anything I actually need is too damn high.