Compared to things like X-Plane or Prepar3D, the cockpit level of complexity is babby-tier. You have a couple gauges to keep an idle eye on, trim, prop trim, prop feathering, radiator openness, general engine heat and that's about it. The combat part, though, adds a whole world of new shit you have to learn because, y'know, it's ww2 combat. DCS doesn't really compare, you effectively don't have fucking electronics period. I can only pray that Cliffs of Dover gets a workable singleplayer at some point, but until then and discounting it I'd rate the IL-2 games a solid 6/10 autisms, with 1/10 being CoD and 10/10 being a megamek lorefag.