Microwaves heat up water molecules inside the food you’re heating. But there’s a limit to how even it can heat. Covering food helps capture the water molecules that end up as steam, which in turn helps everything heat up more evenly.

Helps…. yes, but it ain’t magic. Also you may prefer all or some foods drier. You do you!

Baikal

(Bad computer janitor joke, forgive me)

ffs do it laparoscopically, not open. That’s my two cents. Probably dated advice but yeah, recovery from open sucked. Whereas I’ve heard it’s no big deal for the other.