I like how some of the things are just factually incorrect or nonsensical comparisons.
3.) Most classes are not missing. If you're only talking about the base game, then I believe Solasta has 7 out of the 12 PHB classes--cleric, fighter, paladin, ranger, rogue, sorcerer, wizard (maybe I'm wrong about one of them, but that's still 6/12). And if you include the DLC (and 5e's Artificer), then Solasta has 9/13 classes.
--Many of the subclasses in official 5e materials are missing, but this is because TA didn't get the full 5e license. Thus, they had to create their own subclasses, and I think there are actually *more* subclasses in Solasta than there are in the PHB
5.) Roll dependency??? I mean, yes...? It's a D&D 5e game. Also, you can just go into settings and give yourself +10 to all rolls and enemies a -10 to saving throws, negating "roll dependency."
6.) BG3 will also have a level cap, probably of 12, and EA currently has a level cap of 4. So not sure how you're claiming that Solasta is worse...?
Also, practically all of the subclasses, feats, and the entire WORLD SETTING in Solasta is homebrew given that they don't have the full 5e license so saying that "Solasta is worse than BG3 because it has less homebrew" is...an interesting claim.