Looking at the source code of gnome-tweaks it is trying to set:
gsettings set org.gnome.mutter overlay-key 'Super_R'
which is a mistake. Because the correct setting to get it working is:
gsettings set org.gnome.mutter overlay-key 'menu'
So it's just a bug in gnome-tweaks.
Looking at the source code of gnome-tweaks it is trying to set:
gsettings set org.gnome.mutter overlay-key 'Super_R'
which is a mistake. Because the correct setting to get it working is:
gsettings set org.gnome.mutter overlay-key 'menu'
So it's just a bug in gnome-tweaks.