

A lot of the bigger players like Microsoft, Google and Apple support it. For small sites its a lot rarer. The keys are stored on device, but can be synced in a variety of ways, often using the cloud. There is problems with vendor lock in vecause of that, even though passkeys are an open standard by themselves. Generally nothing is stopping you from copying/synching them yourself.




Absolutely. But passkeys themselves are an open standard, so the implementation is different depending on device, browser etc. I dont use Windows, I dont know how it works there. I dont even use passkeys a lot in general, mostly due to it not being used on that many sites. I still think the technology pretty interesting and will be more relevant in a few years.