It may be hard and I'm pretty sure you can upload it to windows but I just wanted to know because it my be the only thing I can do unless scratch is allowed then that will be easier. If I am allowed to use ether/both I will be really happy, otherwise I might not be able to do this because I can't find a game creating websites and I looked for A TON. Welp lets hope I get an answer.

Can it make a stand alone game or is it somehow linked to Roblox ? (sorry,  I never played Roblox 😂)

Cause if most people can't play it, you might be penalized in a sense that not a lot of people play it to rate it, and having few votes impacts your rating.

I pretty sure I can't make a Roblox game but what about scratch 

If you can export your game and upload it to itch, then you can use that engine/tool. 👍

LET'S GOOOOOOOOO!!!!1