I have read a few posts that this game is too hard etc. I did not find that true at all. I played through blind the first time and dont think anyone had died. Before I even knew the fights. I was thinking it a bit easy.
Also, using grease spells or fog or fire or high ground or back stabbing is not "cheese" they are core game mechanics.
I think maybe a lot of players are new to this type of game and have not figured out how to play yet.
did you know food is as good as a healing potion? and only take a bonus action? Yeah you can attack AND heal, every turn? How are you dying?
The Red CAPS are easy cause you are given a turn or two to prepare for their attack and they don't all attack at once.
If you are having issues with difficulty I suggest looking at some of the videos and see how people are playing and getting ideas.
5e DnD
Grease spell does not create a flammable surface
https://roll20.net/compendium/dnd5e/Grease#contentHeight doesn't give automatic advantage, especially when shooting into melee combat is supposed to provide your target with +2 half-cover AC if something is in your line of sight
https://roll20.net/compendium/dnd5e/Combat#toc_36Alchemist fire targets one creature or object, and doesn't create a 10 foot AoE of fire
https://roll20.net/compendium/dnd5e/Alchemist's%20Fire#contentNon-rogues don't get sneak attack
https://roll20.net/compendium/dnd5e/Rogue#toc_5Non-magic-related character classes can't use scrolls at all, and magic users can only use scrolls that pertain to their school of magic, except rogues with "use magical device"
https://roll20.net/compendium/dnd5e/Spell%20Scroll#contentDrinking a potion is an action not a bonus action
https://roll20.net/compendium/dnd5e/Combat#toc_30Sure, that battle is easy if you use the cheese that Larian has fully baked into BG3. I think you are new to DnD and don't understand the concept that the rule structure exists for a reason.
At what point does Larian substitute so many rule changes that you can no longer really say that BG3 uses 5th edition rules?