I would add that Yubikeys and a number of other tokens work just fine with USB OTG with TOTP if nothing else. If you have a phone with USB Type-C and a Yubikey

I would add that Yubikeys and a number of other tokens work just fine with USB OTG with TOTP if nothing else. If you have a phone with USB Type-C and a Yubikey 4c you can just plug it in direct.