'RPG' when all that means is 'levelling and loot mechanics'. Those just break verisimilitude for me for no actual benefit. I can't really buy into fantasy of somebody (especially with a somewhat established backstory of excellence) to start out as an incompetent buffoon and then in a span of a week become the greatest at everything ever. Such games also often have really poor mechanics elsewhere, often by making the game combat-heavy and not giving you a particular diversity of options when in combat (for example, BG1 and 2 martials largely just get 'hit enemy' and, maybe, 'use equipment').
This criticism applies to looter-shooters and to souls-likes. The former are at least almost always bad shooters which are made addictive via their RPG mechanics, and the latter usually have a rather one-note gameplay of dodging things by rolling, which not only feels dull but also looks very silly and breaks verisimilitude for me.
This criticism does NOT apply to Disco Elysium. I also had fun with New Vegas, which made me realise that I do like narrative parts of games, as Fallout games in general have very subpar gameplay.
'Live service'.
'Multiplayer' - I don't really care for multiplayer. Not a very competitive person. And I can entertain myself in challenging ways by picking up a math textbook and solving problems presented there, or finding problems from math olympiads and solving those. (I know, I have not yet posted the solutions in the other relevant thread - I have been too busy; I have 3 problems' solutions ready and written on paper, the geometry problem I have solved in my mind but have not written the solution yet, and the remaining problem I am yet to produce a detailed solution for.)
'Open world' - usually just means that a lot of the time one has to waste on traversing boring environments.