How to load a free model that is not owned by the game creator?

I am aware that the wiki states

When called from either a Script or LocalScript, the model being inserted has to be owned by the place owner or by the account Roblox.

under LoadAsset, but I believe there are ways around this (e.g. some admin scripts allow you to insert any free model by its id, even if it is not owned by the creator of that game). Is it possible?

local asset = game:GetService("InsertService"):LoadAsset(idOfFreeModelNotOwned)

It doesn't matter if the model is for sale or not, the above code only seems to work if I own the model.

I don't know where "saw admin being able to insert models the game owner doesn't own," 'cause it's not possible if the game owner doesn't own the model