I think a large part of it is Zelenskyy knows what he doesn't know.
He's never served in the military, he was an entertainer and then a public servant. I don't think there are any pretensions about him having grand command authority, a la certain little colonels. Although he certainly knows the value of optics (and that can also be a negative when it comes to military matters [Bakhmut could have been disasterous, for instance]).
Compared to Putin, I think he's more willing to listen and trust his military staff, and I also think he's more prepared to listen to bad news. The latter is probably more important, as it allows tough decisions to be made early on.