Interactive loading screen?

When you’re loading onto a server with a url/html as background you can’t interact with it. like maybe press a button or… playing flash games? I dunno what’s preventing you from it but my question is, is it possible to fix it? The file is in “Steam\steamapps\common\GarrysMod\garrysmod\lua\menu” maybe there are more files that counter this. BTW if there are reasons why it’s countered please tell

Even if you could interact with the loading screens it wouldn’t be very useful unless it was threaded so it doesn’t completely freeze like it does often while loading