How can I log in and out of Twitter?

How can you log in and out of your Twitter profile?
So don't deactivate or delete the entire account, but simply log out until the next time after using it, so that you are not kept online all the time until the next time you use it.

How does that work on the normal Twitter website when using a laptop or PC?

I've googled before, but I only find instructions that are no longer up-to-date because the user interface looks and is structured very differently.

Go to your profile picture at the bottom left, there you can log out

Thank you! I had always looked in the upper area and looked for "log out" there…

Yes, it's not that easy to find either, but there's girlfriend for that.