this question is honestly stupid but i'm stupid too so, i already downloaded it but i'm dumb to not know how to get it to show up on my screen :'D if anyone can explain to me how to do that i would appreciate that a lot ^^;
Go to your file explorer and look in downloads. You can start it from there, and if you right click on it you can set a shortcut. I believe this will work but I don't know for sure since it's been a few months since I've downloaded a game, so I'm sorry if it doesn't.