The technology is safe enough to use, as long as you stick to hardware tokens - I have accumulated a few of them over the years (quite affordable), and you can

The technology is safe enough to use, as long as you stick to hardware tokens - I have accumulated a few of them over the years (quite affordable), and you can get USB-A, USB-C and NFC versions. You shouldn't get locked in with a USB hardware token - you can enrol it in Chrome on one computer, and then authenticate via Firefox in another computer. The issue is really the software-based "passkey" implementation. As long as you're not solely reliant on one company for login (i.e. you enrol multiple keys, one of which is portable and interoperable, AKA a hardware token) you can safely add software-based ones for convenience without getting locked in - you can always use the hardware token to get back in and enrol a new device.