I’m similarly testing Proton at the moment. I tried it at launch, and it was…less than impressive. It worked, but was lacking some features (the details of which I don’t quite remember) and they didn’t have a separate password for Pass vs the rest of their app suite which was a deal breaker for me (which of course they have now).

Testing it now, I’m liking the experience better than Bitwarden overall. There’s some idiosyncrasies between the two I prefer over the other, but nothing deal breaking.

I haven’t found a reason to not switch over, other than the “all eggs in one basket” argument, which is valid but I think I’m OK with.