I moved from Lastpass to 1Password recently. Neither fill basic auth dialogs, and both companies state this is a feature not a bug. It still pisses me off.
I read a while back that browser-based password management with autofill is a big security risk. I can't remember the details, but the article author cited some actual exploits that have affected browser-based password managers.
I was considering switching to KeepassXC in response but didn't get around to it.
I use the desktop app. With a global hotkey it's easy to paste passwords into SSH logins, secrets into vi, etc. With the added benefit of not having to rely on Chrome to isolate your entire password archive from the internet.
This is partially because browsers don't have decent API to handle basic auth. Bitwarden will log you in via basic auth if you only have 1 matching entry for the URL but surely things can be better than this...
Are you suggesting password manager devs start sending patches to browsers? Getting used to all browser API isn't exactly easy to begin with, let alone there aren't many who has enough motivation to wait for that implementation to become wide spread for it to finally solve a problem that is only used by a few.
I was considering switching to KeepassXC in response but didn't get around to it.