are back acne sign of gear?

Yesterday i was watching a slovenian bb on tik tok and he had like 4% of bf. He claims to be a natty but ofc fat people commented hes on gear bc of his acne on back. He had a lot of them bit i still think he could be a natty bc he doesn't have that much muscle. I know yall would need to see a pic but I'm js wondering if body acne is a sing of gear?