1) Install Freetube client ( https://freetubeapp.io ).

2) Install Privacy Redirect browser extension ( https://github.com/SimonBrazell/privacy-redirect#get ).

3) In the browser extension's "Advanced" settings tab, enable the "Use Freetube over Invidious when possible" switch ( e.g. https://addons.mozilla.org/user-media/previews/full/241/2414... ).