GNOME (48) Layout switch to Alt + Tab - Wired Mind Blog

Important: switch off Alt+Shift switch in Tweaks app in case it is installed gsettings set org.gnome.desktop.wm.keybindings switch-input-source-backward "[...

Important: switch off Alt+Shift switch in Tweaks app in case it is installed

gsettings set org.gnome.desktop.wm.keybindings switch-input-source-backward "['Shift_R']"