I agree Building in 5e is quite boring since there is no much choice there (pathfinder kingmaker level is fine in PC-game, I think), but comparing Solasta and DOS2? DOS2 isn't that tactical either, it's too easy to get good position, easy to gather enemies in one place, magic/physical armor system disturb your party balance too.
Pretty much.
Put 2 points in Aeroteurge for every character. Give everyone Teleport and Nether Swap. Congratulations, with a good enough crowd control or mass AoE damage setup, you've suddenly trivialized the vast majority of the game's encounters. The only saving grace is that you have to wait until Act 2 to pick up Nether Swap, while all of the BG3 cheese is available from the very start of the game.
I went and recorded this just now. Note that this is Tactician difficulty, and this is supposed to be one of the hardest non-boss fights in the game due to high ground not being a factor in the battle.
I used to think DOS2 was a very tactical game, but then I came around and realized that it was just wildly imbalanced. It only earned the reputation of being difficult because most people are wildly ignorant about how to utilize the game's systems (or they tackle fights underleveled, the game appears to make your party do about 20% less damage to enemies and enemies do 20% more damage to you just for being 1 level below them), and thus the pedestal that much of the community places it on is beyond exaggerated. Though I can't blame them, a lot of the game's concepts just aren't found in other RPGs.
BG3 just feels a lot worse in this aspect because shoves can be instant kill, high ground as it currently is restrains a lot of your tactics, and it's a lot more obvious what effect both mechanics have on the overall encounter balance. At least you actually have to put some effort into your DOS2 builds and actually learn what everything does to come up with anything remotely similar in that game, which is why I don't really criticize it as much for anything other than the armor system directly contributing to the game's infamous endgame stat bloat.
