I went to an all girls school from 11-16. Playing the guitar was a popular hobby, and we had music tech classes but somehow that never transferred to school talent shows. There were boys in the sixth form, and they would do band things in the shows. (Often stuff like tedious Oasis covers)
Sixth form at the mixed school, the boys were aggressively gatekeepy about instruments, and made it very clear you were there to watch and admire them. The music teacher would put together groups and do showcase things of 60s and 70s songs, but the girls only ever sung or played keyboard/piano.