wow,Again, I don't see any fuel or weapon on that Superhornet picture.
As I said, I KNOW FOR A FACT that CDG weren't certified to operate FA-18E/F Super Hornet, that's a fact, can it have a F-18 Super Hornet take off or land in specific circumstance? Sure, but none of them would have been for combat, because you are going to put every aircraft at Maximum readiness, which mean you would have to max out the FA-18E/F for their mission profile, and many of them are at MTOW.
I don't know how MTOW is rarely used in China, in the US Navy, only 2 scenario are not taking MTOW into account, and they are transit (A Hornet come from a land base land at a Carrier and carry on to another land base) and reconnaissance, ie sending a Super hornet to take picture. Because you would need a quick and slick aircraft. You want it to be minimally armed. Even A2A configuration is close to MTOW, that's because most combat scenario require you to carry both weapon and fuel (including external fuel) for maximum loitering, you don't just go out and perform a strike and get back home. That's not how CAP work
What Chinese do? I don't know
I have never seen an F-18E take off on a carrier in MTOW, on the contrary I can find a lot of F-18E not taking off on a carrier in MTOW. Since you say MTOW is the norm, can you provide evidence for your statement?