Change Minecraft Name? - 2

Ab
3

I bought Minecraft Java today. When I wanted to play, I noticed that my name was completely wrong. I called myself xyz but it says (see picture) ReportedLemur?! Can you help me please?

Change Minecraft Name
Ob

First log in with your account on https://account.mojang.com/....com/login. Then go to "change" Enter your new name and enter your password. Restart Minecraft (if it's still started) and the name has changed!

gl

You have to sign in to the launcher with the Mojang account, not the Microsoft account.

Ab

I don't have a mojang account, what do I have to do