This extension is only compatible with gnome versions from 3.23 to 44. For gnome 45 and later versions, you can use the AATWS extension.

This is a Gnome Shell extension.

It filters the windows shown in the window switcher to those of the current monitor.

You can enable it from its page on the Gnome extensions site: https://extensions.gnome.org/extension/1437/current-screen-only-for-alternate-tab/

Or, to install manually :

cd ~/.local/share/gnome-shell/extensions
git clone https://github.com/mmai/Current_screen_only_on_window_switcher.git Current_screen_only_for_Alternate_Tab@bourcereau.fr

...and reload gnome shell :

1. Open the Run a Command dialog by pressing Alt+F2 on the keyboard.
2. Enter just r in the box and press Enter.