Apllication grid appearing large on pop os

Grid overlarge bigger than screen

possible fractional scaling glitch as was working but pop os removed so back to large off screen icons

any help gratefully recieved…

Turned off Fractional scaling restarted now back to normal…
The opposite of what i did before i.e. turn on fractional scaling then restart.
Still it works so all ok
No idea why it happened in the first place.