So you're only talking about the Windows App Store version of the Arduino IDE, and not the regular version of the Arduino IDE. Right?
Keep in mind that you can always use the regular version of the Arduino IDE with Windows 10. I don't know why anyone would bother messing with these stupid Windows app things if they have an alternative.
pittsville:
It says something like the app "works with core functionality on Windows 10 but some limited plug-ins do not work. We are working with Microsoft on a fix". Core functionality means you will be lucky if you get it to work with Windows 10 but it is not going to work right.
Considering there are only a very few plugins for the Arduino IDE, I think that's quite the exaggeration.
The most popular plugin I know of is the ESP Exception Decoder. That plugin is nice but it's not essential and in fact the average Arduino user probably wouldn't find it useful. If you do need it then there is a command line version that is not an Arduino IDE plugin.
The only other plugin I can think of is the ESP32 filesystem uploader. Again, a nice plugin but not essential.
So if you are actually one of the rare people who do need one of these plugins then just use the regular version of the Arduino IDE. Chances are that the sort of advanced user the plugins are written for would already be doing so.
As I said before, if you're having an actual problem (rather than just panicking over some notice) then start a new thread with a complete description and we'll help you out.