You can say it is another try by MS to launch the RT version of Windows, maybe this time they learned :wink:
Microsoft is going the way of Google trying to migrate PC and phones to use one steamed line app store.
Is it more secure?
There are many malware both in Google store and some in apple store so I guess MS store won't be different.
Sure it is going to be different experience, easy to get apps from one place and with the right setting for your machine
Maybe the windows ecosystem will be less bloated with drivers you don't need, which will make your device work better.
Need to wait and see....