The port-side Z-9 is dangerously close to the port-side J-15 launch position. When fully deployed the Z-9's rotor blades would only be a couple meters away from the J-15's wing. That helo launch marking would not be used while there is a J-15 sitting at that launch position.

"There're other arragement for max recovery and so on."

Exactly none of those CGIs represent "max recovery" arrangements. Every last one (except the first one which has no fighters at all) has multiple fighters parked inside the off-limit landing strip area as delineated by the dotted red and white line, which means no landings can be attempted safely. Whichever fanboi made these CGIs has literally no idea WTF they are doing because they clearly have no idea what the flight deck markings even mean.

"A carrier hangar does not need to store all aircraft a carrier is equipped with. On Nimitz the hangar capacity is about 1/3 of the total aircraft carried. It's more typically used for aircraft maintenance, repairs and so on."