Fat guys that lose a lot of weight have massive calves. No amount of calf/ toe raises can compete with walking around with a hundred pounds or more of excess weight.

Yeah, you're carrying it. Your mass doesn't have another way to get around with you

That's part of why people always lose lean mass when they lose weight. You no longer need that muscle and bone to move the weight around.

Pretty much. One of the advantages overweight people have if they want to start exercising is they're literally doing resistance exercises all the time they're moving due to the extra weight they're carrying. Over the last few years I lost 25kg, the equivalent of a large sack of potatoes.

Well, if you're proper skinny, you ain't pressing 500.

That being said, as long as you're doing enough exercises while adding the fat, you will at least maintain your strength. Fat guys in the gym tends to have a noticeable increase in weights on a leg press vs a squat because when you're squatting, you're lifting the extra body mass. Well, presses are a tad easier as well, what with it being stabilized by the sled.

But, yeah, if you hang with lifters that carry extra fat, they'll tend to have decent leg gains by virtue of hauling around the extra mass all day.

Even with people that don't lift, they'll be able to push more in a press than a squat.

With shortened range of motion yes. And probably bad form.

Also, how would you press without the shoulders? https://youtu.be/x4O0WzWWpd0