Fractional scaling not showing up in gnome wayland after activation

Fractional scaling does not show up on gnome Wayland session, even though I activated it using

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

any ideas?

Did you reboot or at least log out and back in? Are you sure you are under wayland session? Check from terminal with:

Yes I did a reboot, and I checked multiple times that I am under Wayland