UE5.0.2 unable to launch. A message appears "Plugin 'OnlineSubsystemUtils' failed to load...

[L1z4rD89]

Plugin 'X' failed to load because module 'X' could not be loaded launch error

I had the same issue. I figured it out that the problem lies in that I have a Windows N version which doesn’t have media features. By installing Windows media feature pack: Media Feature Pack list for Windows N editions the problem was solved for me and I was able to launch the engine.

Maybe this is a solution for you