I'm just testing the new Assets Library feature of Blender 3.0.
Just for the question :
I had an old file (26Mb) that had 280 low-poly humans in a collection.
I marked them all as assets, and cleared the scene.
So now I have an empty file, with my 280 low-poly humans in the Assets Browser.
But the file got bigger : 44Mb, which is almost twice bigger.
Does anyone knows why ?
Thanks