Every time passkeys are brought up on HN it’s nothing but complaining and/or refusing to learn the basics about something new, but I’ve been switching to them on every site I can for months with literally no problems.

1Password everywhere, on iOS, Mac, and Windows. I’ve run into none of the issues elsewhere in the comments. Everything just works, including in-app logins.

Maybe your other password managers are just bad at implementing the right browser/OS hooks?