To better protect my account, I would like to add a second factor for authentication, so I looked up your documentation and found that it is possible to either use an authentication app or to use U2F e.g. with yubikey.
I followed the documentation and but I can only see in the twofactor settings that I can only add an app as a second factor.
Do I need to first create a second factor with an app to get then the U2F function enrolled or what do I need to do to get it working?
Many thanks in advance
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