Thanks for the reply. I had no idea that there were four disks. Maybe they're all downloaded. I need to cross-check it. And I was about to post this thing to their Support Forum as well.
Yeah, I purchased it from Steam only.
Yeah, I purchased the 2020 edition. The problem is, the MSFS is not showing in the library, I don't know why. And there was not any issue while purchasing it. I found this random article online, can you tell me if I follow the steps, will the issue go away?