Let's be real, BG3 is a far far far far far better game than Solasta.
Solasta does some stuff well that Larian can learn from, but only in select areas.
Eh, somewhat true, somewhat debatable. Not even a comparison that makes that much sense to begin with, if not when limited to specific segments of both games.
On one hand there's no doubt that BG3 will be a far bigger, visually more impressive, narratively more engaging and technically more ambitious game. How could it be otherwise? You could fund the entire Solasta sequel with the budget Larian spent on the BG3 cinematic trailer in 2019.
That said, it doesn't make any less impressive that Solasta managed to do few things so remarkably better in some specific area, especially given their massive gap in production value.
Solasta has a very solid reaction system, a very faithful implementation of the rules (that doesn't forget to be entertaining in the process, quite the opposite), a competent rest and attunement system, an UI that doesn't induce cancer in small animals, etc.
Let's be real, BG3 is a far far far far far better game than Solasta.

I know that it may seem I'm specifically trying to give you a hard time, but once again... By your own admission you never played a single minute of Solasta ("and you never will" if I remember your words correctly) so I'm genuinely not sure of why you insist on expressing opinions about it.
Because sure, anyone has right to hold into an opinion, but the uninformed ones are still not worth a damn.