I totally concur but we’re beyond that now and just have to accept Larian’s idiosyncratic take on BG or simply don’t play it.
Well there is more than that. Even though not likely to happen people can demand refunds. Enough of that occurs they will see a problem.
You can write reviews to make sure others aren't roped into this fraud. Right now somehow this game is mostly positive on stream despite the deception.
You can file complaints with the BBB in the U.S. and whatever org there is in France. I've begun that process with the BBB. Still haven't found the relevant org or authority in France.
You can write to WoTC, to state you don't want Larian to get to use the IP again.
etc, etc.
And I'm leaning to the last part of what I quoted from you as well. Just not playing it, which will affect their steam data.