If you've learnt how to use Musescore, and you have no external reason to learn Dorico or Sibelius, e.g. you need to collaborate with others already using them, then you're good. Editing is fast enough, people reading your music won't notice a difference once it's printed out.

The only thing I can think of is playback with VSTs and other fancy tools (e.g. Philharmonik, NotePerformer) - the fanciest ones are tied to Dorico/Sibelius/Finale. MuseScore now has its own such playback system, Muse Sounds, but each person will have their own preference.

Dorico is exceptional software, but it’s expensive and there’s a learning curve.

If you have the money to spend and like fiddling with pro software I’d recommend it, but if MuseScore meets your needs then I’d stick with it. It seems to be in good hands and should continue to improve over time.