Not really sure what this means. I’m not really aware of anything I’m missing out on. If you don’t want to use their cloud storage (which you have to pay extra for) there’s no need to have an apple account. All the apps I use work fine locally

You don’t need to use an Apple account with Mac computers, and it doesn’t even try very hard to convince you to either

HL2, Portal 2, Far Cry (1), Commander Keen, Supreme Commander, Raptor: Call of the Shadows. Halo MCC but particularly 2.