I play Final Fantasy XIV on PS5, where most jobs have a good 15 or more actions to keep track of, plus universal stuff like mounts, the Teleport and Return transportation actions, miscellaneous skills like Sprint and Limit Break, and other stuff that's probably slipping my mind right now. The number of actions isn't really a huge hurdle to overcome, depending on how they handle the UI.
Of course, if high-end raiding is still as dependent on add-ons as it was back when I was into WoW, that's a whole other problem.