There are loads of "modern" apps that can't be uninstalled from Win10. Some are in the list but you're not allowed; some aren't in the list.

But it's easy to copy-and-paste a bit of Powershell and just uninstall them anyway:

https://www.techsupportall.com/uninstall-built-apps-windows-...

There are 3rd party tools too: https://www.howtogeek.com/224798/how-to-uninstall-windows-10...