Unwanted zooming when clicking right

[ooflimit93]

Version 2.0.76

Hello there,

I play Factorio on a Steam Deck with additional keyboard and mouse. Things were fine until a child shot a ball on my gaming setup which pressed some unknown buttons.
Since then there is following issue:
Every time I use the right mouse key for removing something while building, the game zooms until I stop pressing that button. Also the ingame menus where scaled too large but I was able to fix that by fixating the scaling to 100%.
I checked the control settings and it says it's all on default settings. Also I tried a different mouse, all lot of keyboard pressing combinations, reinstalling the game and I even resetted my Steam Deck. Nothing helped.
For a helping advice I would be thankful.