Disable Left-Super from window tiling
This should do
get current settings
gsettings get org.gnome.mutter.keybindings toggle-tiled-right
gsettings get org.gnome.mutter.keybindings toggle-tiled-left
set Super_R
gsettings set org.gnome.mutter.keybindings toggle-tiled-right "['<Super_R>Right']"
gsettings set org.gnome.mutter.keybindings toggle-tiled-left "['<Super_R>Left']"