You’re fine, the CoD UI is indeed an inscrutable mess designed to maximize “engagement.” Same for other live service type games. I think they want the same entrancing effect as stepping into a casino.
Fortnite UI changes constantly and is horrible to use.
Factorio has a great UI.
Aside from the atrocious menu structure, they also throw all this lingo at you with zero explanation like you’re already supposed to know how everything works. Challenges? Plunder? DMZ? Season pass? I don’t even know what a “season” is! Let me play the damn game!