I like to think of it this way in my little bubble. :) I have a Yubkey 5 with NFC. I use passkeylogin into Authentik so all I have to do is plug in my key, unlock it with my master password for the key and touch the disk and I’m logged into my site. If I view the contents of my key with the ykman software, then I can see that I have two logins, one for mobile and one for my site. Each has is different so it knows which one is mobile and which is desktop.
The same principle may apply with the PC’s TPM. Your credentials may apply the same way there. I’m not 100% familiar with the TPM process but think as long as it works with Fido2 , you should be fine.
I like to think of it this way in my little bubble. :) I have a Yubkey 5 with NFC. I use passkeylogin into Authentik so all I have to do is plug in my key, unlock it with my master password for the key and touch the disk and I’m logged into my site. If I view the contents of my key with the ykman software, then I can see that I have two logins, one for mobile and one for my site. Each has is different so it knows which one is mobile and which is desktop.
The same principle may apply with the PC’s TPM. Your credentials may apply the same way there. I’m not 100% familiar with the TPM process but think as long as it works with Fido2 , you should be fine.