If I'm being honest I'll be using both at least until Sync officially shuts down. After that reddit will be 100% old.reddit on the laptop, and when the quality takes a dive from mods quitting/mod tools getting nuked then lemmy all the way
The official app is terrible and not worth suffering for a dopamine hit. I know spending all that time scrolling on the phone isnt good for my mental health so I suppose this makes for a good opportunity to readjust.