I do this too. I would need them if I lost my phone, so bitwarden/keepass is a good place for them to be.
I think it is less secure though since someone who somehow has the unencrypted vault without your 2FA device could get in with the codes - but if someone cracks my master password I’m screwed in a whole bunch of ways so I’m not sure it matters too much at that point.
Yeah, same. It just gets better and better. I do sometimes wonder how it would appeal to people who don’t play D&D. Though I never followed Critical Role and like it so I guess that’s a point in its favor.