Late reply, but yes. You can mix and match to record from Pulse but playback to ALSA too (or the other way around) but I think using Pulse for both makes more sense.

I’ve been using Audacity with PulseAudio for quite a while now and it works fine for me. I sometimes find myself tweaking volumes in PulseAudio on the side.

Bitwarden has a really nice CLI that lets you backup your vault easily. I personally run bw export --format json --raw every few week so if for some reason I lose the “cloud” access, I can still migrate to self hosted or a different password manager. (Or you may choose to self-host to begin with)