some people bounce around between several loves as their lives evolve

I think this is the healthy side of it as there things change, conditions change, opinions change. What we love to do can change too.

The gamification stuff works on constant dopamine release because well if it's not "fun" how else are they going to keep people scrolling so they can keep shoving ads nobody cares about in their faces? XD

Yep. But of course, "I am free to choose" :D