Yes. Just use Bitwarden’s export feature. Export as an unencrypted json file and you can import that into Proton Pass. I had no issues.
For extra safety, you can export the unencrypted json file to /dev/shm. This is a ram disk so you don’t save all your passwords unencrypted to disk (though this matters less if you use an encrypted disk).
I haven’t looked into it but since you have, is it easy to move your vault over?
Yes. Just use Bitwarden’s export feature. Export as an unencrypted json file and you can import that into Proton Pass. I had no issues.
For extra safety, you can export the unencrypted json file to /dev/shm. This is a ram disk so you don’t save all your passwords unencrypted to disk (though this matters less if you use an encrypted disk).