How do you log in as root in Fedora?

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Welcome to ask.fedora. That's a good question you ask. Generally, logging into a GUI as root is not recommended because it's far too easy to mess things up. In Fedora, it's disabled by default for safety reasons. I know that this can be changed, but not how, because I've never had a reason to do it. If you're using a terminal, and know the root password (If you installed Fedora yourself, you should because setting it is part of the install process.) you can use one or another form of the su command to become root, either until you exit that login or, if you've used su -c until that one command is complete. Or, if your account is in the wheel group, making it an Administrator, you can use sudo and your own password in place of su -c. If you need more help, either edit your question or make a comment below this because you only get to make one answer per question.

You can do ctl+alt+F3 then login as root or you can login to your user open a terminal and then

su -

to login as root

If you need to issue a command and has access as administrator you can do

sudo command

Hope this help

You can login as root directly from the login screen by clicking on the "Not listed?" option and enter username as root and password will be the root password.