Some are great. Take the Chrome one: Go to wikipedia and know something about pretty much everything. A lot of knowledge is useful even if you don’t properly understand everything.

Youtube is a lesser version of Chrome.

What’sApp entirely depends on how easily gullible rich people would give you money. You could probably just sell those information too.

Netflix and Amazon could yield some nice money.

Spotify would massively decrease the barrier of learning new instruments if you’re into that. But many of the benefits can be achieved by scrolling through notes/lyrics with the Chrome benefit.