I can't find highly accurate sales figures for each, but most stats seem to imply that DOS 2 far outsold POE 2 and Kingmaker.
Steam chart shows a roughly 5x player base of
DOS 2 compared to
KingmakerMoving away from RTwP might anger some of the BG1/2 fanbase, but I think Larian correctly assessed that it's too big of a risk to move away from Turn-based given DOS 2's popularity.
It's not definite proof, but it is very telling that both Deadfire and Kingmaker added in turn-base modes to their games post-launch, likely due to consumer demand. We don't see the inverse for Larian.
EDITED:
Don't understand the logic of choosing indie games to prove sales.
Final Fantasy, DAO, Mass Effect, Fallout all of them have either RtWP or Real time with pause elements.
No doubt at all that BG3 would have sold twice by now. It is not even a question.
Out of the above listed game, only DAO is really comparable - and that is a decade old game. The market has changed too much to reliably use it as an example for demand. There is a reason why isometric CRPGs basically experienced a "dead" period in the early 2010's.
Fallout and Mass Effect are shooters that play completely differently. Can you imagine if Larian had decided to make BG3 an ARPG with some sort of pause elements? You think BG1/2 enthusiasts are mad now?
I'm not familiar with all versions of Final Fantasy, but each one tends to have a different combat system and I do not ever recall playing an isometric CRPG version of that.
