Pretty much sums it up.
BG3 is more exciting and cinematic but Solasta is a better game.
I say cinematic instead of immersive because the gameplay and other goofy elements of BG3 sadly throw immersion off.
If Larian can make BG3 combat good and tactically interesting, and cut down on the cheesy barrel and shove factor it could be the best RPG of all time. Unless the story somehow fails completely after act 1, which seems doubtful.