Personally I use Enpass.
It’s both my password manager, but also the place where I keep track of notes about devices, accounts and software licences.
I tried to change over to Bitwarden a few weeks ago, because that is what my office wants us to move to, but the limitations are not really bridgeable for me. Bitwarden seem to me to be very specifically a password manager and not much else.
It shouldn’t even be that complex…
I might be mistaken, but ultimately a password manager is basically nothing more than a database of passwords in an encrypted zip file, right? That could entirely be self-hosted with off the shelf open source applications stringed together.
All you’d need is a nice UI stringing it all together.
Edit: I’m not sure why people are downvoting me. Is that not what a password manager essentially is?