Comment by microtonal

I temporarily moved from Fastmail to Proton Mail, but found several downsides:

* Loading mails (especially when going quickly through them) has quite some latency. Possibly due to decrypting.

* Search is pretty bad compared to Fastmail.

* The keyboard shortcuts seem to never work correctly.

So I went back to Fastmail for mail (we still use Proton Drive, which has its own set of warts).