You can also look into Trezor - it has much better backup system, among other advatages compared to yobikey https://blog.trezor.io/openssh-with-fido2-and-trezo

You can also look into Trezor - it has much better backup system, among other advatages compared to yobikey https://blog.trezor.io/openssh-with-fido2-and-trezor-e565c2277 https://blog.trezor.io/openssh-with-fido2-and-trezor-e565c22...