The share menu is used for everything on ios, I had to get used to it at my first apple device’s case.
One notably stupid usage of the Share option was (I believe it is no longer how it’s done) adding an image to a hidden folder — that’s something you definitely don’t want to share, yet quite easy to accidentally send to someone during this process.
Thankfully this insanity is changing in the upcoming release due in September. A button for a 3 dot/hamburger menu appears in the bottom right when you select photos.
One notably stupid usage of the Share option was (I believe it is no longer how it’s done) adding an image to a hidden folder — that’s something you definitely don’t want to share, yet quite easy to accidentally send to someone during this process.