When it works, it works great. You can tell the extension to auto-fill and auto-submit, so that it feels like you had been logged in from the very beginning.
The problem is, it works (in my experience) around 80% of the time. I'm guessing it's not on them since it requieres websites to follow certain standards in order to have autodetectable login form fields, but it's a pain nonetheless.
Try it, it takes a couple mins to set up. The best feature IMO is the keyboard shortcuts to fill in details.
I use Basic Auth for many of my LAN-only web services at home and KeepassXC + browser extension feels like having client-side certificate authentication or similar, feels like going through airport security without taking your stuff off into bins.
Well, that's better than my experience with Lastpass, although that might just be me.
https://keepassxc.org/docs/KeePassXC_GettingStarted.html#_se...