I just got to the two minotaurs in the the underdark. My previous save was a few hours before this point so I had no choice but to fight them. I was only able to beat them because one of the minotaurs one shot the other one, plus shadowheart and wyll by doing a 76 damage jump off the cliff.
I spent 40 minutes trying to figure out how to maneuver Astarion and Wyll so they wouldn't die on the first turn. I eventually just came to the conclusion that I had to run and try again later, so I chugged 4 haste potions and sprinted out asap while one of the minotaurs was stunned with Halt.
My fight with dror I had to have my whole team hide while Halsin soloed 4-5 enemies as they trickled in through the door on the left. I couldn't have anyone but my main character, a battlemaster fighter with 16 ac and 30ish hp anywhere near the combat because they would just die in one turn. I tried positioning wyll and astarion on the rafters above so they could pick people off at a distance and with a height advantage but dror just ignored Halsin and my fighter and climbed up the ladder so he could knock the other two off and down them in one hit.
I agree with the quote above me, the combat should be doable without having to game the heck out of it or get really lucky.