Last I checked, Bitwarden doesn't have any way to hit a hotkey and insert login credentials in the current app? It also can't be unlocked with biometrics?
Those aren't "nice" features for people in the Apple ecosystem, they're baseline features that every password manager needs to have. I don't just type passwords into a browser, so a browser extension alone isn't enough. And I'm not typing my umpteen character long password fifty times a day, there needs to be biometrics.
I will always choose open source software over closed source software - but not if it means choosing mediocre software over good software.