If you are a business thinking about using a 3rd party passkey when this is available: Don't. 3rd party products that integrate deeply into Windows like this are always 2nd class citizens in the Windows ecosystem.
I guarantee it: Microsoft will push an update that breaks it and it'll be an enormous outage for your company. Microsoft has a very long history of doing this and it's much, much worse than when they screw up their own shit because it'll take a lot longer for a fix to get issued (they have to work with the 3rd party they just broke).
Microsoft also has a history of completely screwing over companies they partner with for integrations like this. One day they'll announce they're ending support for 3rd party passkeys (or just the one vendor you chose) and you will be screwed.

New Years resolution the past 5 years: I will get better with Rust.
...and I do get better but somehow it always feels like it's not enough. Like, I'm still an imposter.
I can program an entire embedded USB keyboard/mouse firmware from scratch that can do all sorts of things no keyboard has ever done before yet I still feel like a newbie somehow. Like there's all these people that talk about traits and mutli-threaring with async and GPU and AI stuff and I'm like, "I wrote an embedded_hal crate that lets you use both 8 and 16-channel multiplexers simultaneously!" or, "I wrote an interface that let's you use the extra space in your RP2040 flash memory as a filesystem!"
Yet everything I ever write in Rust always just uses the most basic and simple features because I still have trouble with complex lifetimes (passing them around quickly gets too confusing for me) and traits that work with non-basic types (because in the world of embedded
'staticis king).