If you played any older DnD editions youd probably run into very much the same stuff. "Im gonna flood the dungeon" "Im going to set everything on fire" "I use a ten foot pole to inspect EVERY SINGLE FLOOR TILE IN THE DUNGEON"
I cannot understand how this is "not DnD" to you. What is DnD? Just playing the rules with no roleplay and no trying to gain an upper hand? DnD doesnt play like that. it never did. Hell i remember two years ago everyone as PSYCHED about Goblin Slayer and how cool it was that the characters in that series improvised like an actual DnD party instead of just running up tot he monsters and beating them up. And now its suddenly bad because larian is doing it?
And im not even going into the absolute cheese you could do in the infinity engine with absoluteley rule breaking stuff like kiting
Is it DnD for players to be able to jump clear over the head of the enemy he has engaged to land behind him, and as the enemy watches you helplessly (due to it being turn based and it's not his turn to move) as you stab him in the back?
Is it DnD to be able to go invisible and then push an enemy that is twice your height and weight to his death with 100% chance of success?
Is it DnD for a character with 17 STR to be able to pick up an enemy, with perfect acquiescence from the latter, and then hurl him clear across the room? Mind you, the enemy cannot even do anything to stop you from lifting him up. Is this how DnD is played?
Is it DnD for low level goblins to shoot fire arrows that, even when they miss you, light the ground beneath you on fire and do guaranteed unavoidable 2D4 damage?