It is as simple as providing a service that has all content I want to watch. Look at things like Spotify or Apple Music. They don't have everything, but it's enough and has effectively stopped my pirating music.
Same with Netflix. It stopped me pirating because of the convenience, but since everything got separated in its own service again, I started up my own plex server. I'm not jumping through a million hoops to watch a stupid show or film...
Not to mention keeping game saves in sync. I’m experimenting with syncthing for my pirated games, but I have to admit that just getting the Steam version sounds much more sensible now that I’ve my Steam deck.