What does this icon mean on iPhone status bar?

I noticed it there this morning next to my battery percentWhat does this icon mean on iPhone status bar - 1

It's a lock, it pops up, no one really knows why, have you tried clicking on it?

Your screen rotation setting is locked. Pull up the quick communication shorts cuts center from the bottom. Look in the top right corner next to the 'do not disturb moon' and cut it off. Best luck.

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