I added a few things:
>a key to toggle crosshair on/off without taking a screenshot
>a key to toggle vid_fps on/off without taking a screenshot
>added to the custom screenshot key to set vid_fps off before taking the screenshot otherwise If you have it on it will show in the screenshot
fps counter on the top right isnt set to go back on after taking the screenshot if you had it on you have to press the key to turn it on again
if you play with it on all the time and want it back on after you took the clean screenshot with the custom key you have to add vid_fps 1 at the end of the custom screenshot key macro
if anybody wants this just ask I'll upload to CatBox
thanks to everyone that helped me making this
its ridiculous that GZDoom in 2025 doesnt have even an option nor a default keybind to show/hide the fps counter