Looking at the Microsoft link, the big difference seems to be age and relevance.
1. Skype for Business - 18 years old. Upgrade path to Microsoft Teams
2. Windows Server Essentials - 26 years old. Unsure how relevant this is today with everything going cloud-based
3. Atom - Wasn't originally a Microsoft product and they maintained it despite there already being a better Microsoft alternative for longer than expected. Also 9 years old
4. Internet Explorer - 27 years old and a clear upgrade path was available
5. Forza Street - F2P racing game. Can't excuse this one
6. Microsoft Academic - No excuse, however the data had an open license and migrated elsewhere
7. Channel 9 - 17 years old
8. Silverlight - 16 years old and the web had evolved beyond it long ago
Microsoft has killed 13 products since 2021 and many of them had simply run their course. Comparatively, Google has killed 57 products in that same time frame. Most of them are under 10 years old, many of them under 5. Many of them had not run their course and almost all of them had no clear upgrade or migration path.
