Not my favorite game, but one I've been playing a lot recently is Deep Rock Galactic and I absolutely hate how most menus are physical terminals you have to walk up to interact, it's unecessary busywork. And the baffling part is you can press tab to open the mission select menu, but that's it, no other shortcuts! Why even have multiple in-game terminals?!

And to a lesser degree, the crassus detonator enemy. I absolutely despise spotting one in-game because I just know I'm going to be forced to spend the next 15 minutes mining a gold sphere inside out, it completely and utterly destroys the game flow. In summary, it blows up when dead and anything nearby in a big sphere turns into gold, the slowest mineral to mine in-game. Usually when I'm soloing I just ignore the gold, but cooping I usually don't get the satisfaction. It's infuriating because it's such a simple fix, make it drop gold nuggets instead of making the scenary around it gold, but no, gotta ruin the game flow for whatever reason.