Bitwarden. It is open source, reliable, easy to use, and compatible with everything. The free version has nearly everything, but I have the paid version to support development because $10 per year is very reasonable.
I do regularly export my password vault to KeePassXC as my backup though.
Bitwarden. The UI is about to be updated to something more modern so that's no longer is an issue for most people. It's also open source, so yes.
The 10€ per year as the premium subscription is just unbeatable. You pay less than half a euro per month for a reliable and robust password manager. And you don't even need the premium subscription, because almost everything is free. I honestly consider it a donation rather than a subscription.
I really enjoy 1Password. Works really well, plenty of storage functionality for all kinds of data. There's watchtower functionality for poor or leaked passwords, or missing 2fa/passkeys too. One of my favorites is the built-in ssh-agent. In my eyes, it's absolutely worth the asking price
Its spelled KeePass (not to be pedantic, just for clarity). Here's a link on F-droid for KeePassDX. Others should chime in, but I think KeePassXC is the best choice for Win/Linux/Mac. Then sync your database via Syncthing (or your trusted cloud provider).
Same here, self hosted on docker. I migrated from KeepassXC and I'm very happy.
Keepass was ok but because I have various devices (Mac, Windows, Android, and iPad) all accessing it, at times it would cause issues. No issues that way with VaultWarden.
At work we're using Bitwarden for the group benefits; though I still have KeePassXC running to simplify SSH keys (Windows, naturally) for native & PuTTY.
Personally, I use KeePassXC & KeePass android (currently); and sync'd through GDrive; which is good enough for my needs.
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.