Have you tried this page at the MS store?
Basically, after an update, my alienware command center stopped working. It would start up then crash. I downloaded the drivers from the Dell website again but it still wasn't working. Then I used Revo uninstaller app to totally delete all AWCC stuff from my Dell G15 5515 (RTX 3060, 5800H)I then redownloaded Alienware OC Controls and Alienware command center application from the dell website in the hopes that it'll be fixed now. The components were all installed but I can't find the Alienware command center app anywhere. I searched online and I was told that the app is on the microsoft store, but I cannot find it there. What should I do?
Alienware Command Center App Not on the Microsoft Store