"Hi, xyz"

What happens if you log out? ;)

But even when logged in, you can turn off this toolbar ( which stretches across the entire width ) under your user account .
This should make it easier for you to access important editor functions ( see left : new pages / posts / etc ). However, this toolbar has a certain height, and this is sometimes not included in the distances to be set. Especially if you want to adjust the padding-top of #Main on mobile devices it is advisable to disable this toolbar temporarily.

well, if the questions are asked precisely, you can also answer precisely. Unfortunately, it is not clear from your question where the hi, xyz appears. A screenshot would help. ( on my installation there is: Howdy, nickname )

What is your answer to the question: “What happens if you log out? ;)” Do you see any topbar then?
so only logged in users see that topbar!

_____

Has reading and learning gone out of fashion?

PS: Precise because I follow the old principle:
“Don’t give a starving man a fish. Give him your fishing rod.”

of course you can always chew code snippets here. and that would be it – but does that help you to find your own solutions for the next problem?

– just to prevent misunderstandings – like you, I’m a participant here – not a moderator – I do this because I’ve had a high learning effect myself by asking questions and solving problems. If you go back in my “Enfold Vitae”, I too occasionally asked simple questions. However, I was always grateful when the moderators or sometimes even the developers of the theme explained why something works the way it does – and even better where in the source code to look for the solution. so furthermore I wish you much success for your wordpress project.