I might have the same problem, i just made a forum and was looking at others. i have no idea how to fix it. I open it, it shows “starting roblox” closes, doesnt run in the background and thats about it. I used a different pc too which works. The microsoft app sucks in so many ways. Now that i see you reset your laptop with no prevail i will not reset mine. it seems like a waste of time. ALso ironically we are both using windows 11. Are you using insider builds?. i belive thats the problem but i am not too sure.