Every time I login to certain sites (like my health insurance, for one) I get a passkey prompt (system dialog) with no way to keyboard-dismiss, so I'm forced to move my hand over to the mouse and figure out which of three poorly-named buttons to press to get on with the login and ignore the passkey.

It's a minor inconvenience, but happens so regularly I hate it. It also stops the login flow until I dismiss the prompt, which is also annoying as I could've already gotten to the page I wanted to get to in the time it took to dismiss the dialog.