Exactly. For me a big one that started in FIFA 17, became even stronger in 18, and as far as I can tell has continued in 19 (I didn't play it) is that if you just leave the AI to defend on-the-ball for you they pretty much stick in front of the dribbler and don't get beat by changes of direction. So while in FIFA 16 and before I could create a lot of openings by changing direction when receiving a pass, trying to isolate a pacy winger and go 1v1, etc. now players can just do nothing and their defender will basically not get beat.
In their latest Pitch Notes regarding FIFA 20 they've acknowledged that its something they want to address for the next game, but its ridiculous that it was in the game for 3 editions (and not 16 and before). They did it on purpose to be a crutch for weaker players. And there's numerous other examples across other fundamentals (passing, defending passes, shooting, etc) that are similar. It became very random as to who would win a game, and that's not how competitive gaming should be. I expect to lose 50% of the time if matched against people of the similar level, but I also expect it to be because they were better at the game.