I would encourage you to also search for data
That is the question i asked ... what data im i suppose to search?
Amount of people who played C-RPG in last 50 years? O_o
Its nice you have big number you can show, but that is all it is ... "a big number" ... with zero value, especialy for this topic. :-/
How many of those people play computer games?
How many of those people will buy Baldur's Gate 3?
How many of those people would appreciate if Baldur's Gate 3 would be closer to 5e?
How many of those people even preffer 5e over other ruleset for tabletop?
How many of those people still actively play?
How many of those people are even still alive?

You dont know answer for any of those questions ...
So your big number is really nice, but also completely useless.

Somewhat. Though the great thing about suggesting "give us D&D" mode is that the D&D rules already have all the specifics. I guess, if I had to specify, I'd argue for: give us a "D&D combat mechanics" mode.
Yup that would be better ...
You know the problem here is just wording ... you are here long enough to know that unless people specificly say what exactly they wish to change and how, it allways turn into "pure transcription 1:1 of tabletop rules" ... wich was multiple times confrimmed by Swen himself that is not going to happen.
Also there are things that are really fun, and other things that should be changed ... so it would be fine to be clear on what do you really wish to change ... just stating "give us DnD more" means litteraly everything in game ... state "i want DnD combat mechanics" is a little better, but it would still mean everything related to combat.
Few examples ...
There are things that are not acording to rules, but should remain as they are:
- Allowing people to cast second leveled spell after they cast Misty Step, even tho rules forbids it ...
- Allowing people to use bonus action to drink potion, since i dont think that give something to your mouth and gulp is so complex task so it would require full action ...
- Allowing people to have +2 to AC from shield at all time kinda makes sence ... since the shield is still there its just protecting your back, instead your front while you hold Bow ... also if you are not profficient, you get Disadvantage to everything at all time, not just when you are holding it ...
Etc. etc.
- Allowing people to use Barrels ... i will not start this conversation again, there is topic about that

But there certainly are things that should be changed:
- Remove bonus action cost from Jump and adjust jumping distance acordingly ...
- Change shove to action, rather than bonus action ... add condition that you cannot shove creature that is bigger than you are.
- Add responce from NPCs when you lay explosives next to them.
- Give all Chromatic Orb corect damage and remove surface effects (optimaly make it toggleable* ...)
- Remove surface effects from Elemental Arrows ... and allow their usage combined with Sneak Attack*.
*Theese both things could be done if Larian would use Metamagic style more often for other classes ... just to avoid confusion, lets not call it metamagic menu but toggleable effects menu ...
As i mutiple times mentioned in other threats ... you togggle Sneak Attack here > it adds damage to your next attack, no matter wich or what attack (meele, ranged, offhand ... strike consumes Sneak Attack resource, miss will not ... so single SA per turn as it should be) ... you toggle Blattlemaster maneuver > it adds it ... you toggle Metamagic > it adds it ... you toggle "sacrifice single damage Dice to create surface effect" > it does it ... you toggle non-lethal attacks > it does it ... etc.
This discussion is about whether there should be different modes (a as close to as possible to 5E raw mode and another mode that Larian thinks will be more more appealing to people who are not buying 5e game for a D&D experience.
My personal statement for this question allone: No.
I believe it will take Larian enough time an resources to create single model for this game, that would be automaticly adjustable with difficiulty options ... to create more than one model seems litteraly impossible, so it would mean that in order to do this they would have to abandon everything else ... and i believe it would be shame.