Taking screenshots after the update

Good day to everyone.
There's been an update that completely ruined the interface for me. I had the things in needed on the top and now I cant manage to find anything anymore.
It took me days to find how to take a screenshot of a whole page even though it used to be a separate button for it.

Can someone explain to me how to bring that button back (it used to look like a pic of a camera)? Thanks in advance.