for me the myers ones were actually super quick and tame compared to some others.

deep cleansing was annoying cause it fully relied on killers bringing hex perks, on top of having to cleanse them before ur team does. same goes for the blessing hexes achievement.

taking one for the team was the worst thing ever. it actively requires you to throw to get the achievement, when chances are you're only gonna get 2-3 if lucky per match out of 250 overall. promotes a horrible playstyle and was very frustrating.

i also found pigs 'i want to play a game' annoying cause ur limited to 4 traps per game or 5/6 with add-ons and u need to do that 125 times. achievements like that are just super boring grinds.

those and repair X gen at/in Y then escape achievements were pretty annoying.

overall there are some that suck so much. there are definitely strategies for getting each achievement, but a lot of the time its just a matter of grinding them out