This is great, just found it today and already having a lot of fun! My main suggestion is a search bar for the create menu so you can find your props a bit faster. (I would also love to import my own models/textures/sounds, but if that wouldn't work out I'd completely understand.) This is very swag and I'm going to enjoy it a lot.
this was a good question so I asked a few people if there was enough interest in starting a discord for this game and they said yes! so I made one! it's a day old right now https://discord.gg/Et8DqP42uq