Hi!

Upgraded from F38 and trying to get 150% scaling as 100% is too small and 200% too big. Both

gsettings reset org.gnome.mutter experimental-features

or 
gsettings set org.gnome.mutter experimental-features "['scale-monitor-framebuffer']"

and logging out do nothing.

It used to work a few years ago. Any idea how to fix this?

Thank you.
Fred