Apple handles it cleanly in Safari (you get a list of the accounts you're registered with on macOS, and iOS gives you the two most-recently-used accounts for that website with a button to reveal more).
The implementation in Chromium browsers (I use Arc, so I can't speak to Chrome itself) is basically a chunkier-looking 1Password.
Well if that’s what’s meant to happen, it does not happen for me. All I get is the same account over and over again that isn’t the one I want to log in with. No matter how many times I tap the little x and then select the account I want, carefully avoiding the gaze of Face ID which will automatically use the selected passkey if it spots me.
Let me see if I can get it again