If I bought Minecraft for windows Deluxe edition in 2021 through microsoft store Why does...

https://www.xbox.com/en-AU/games/store/minecraf...

This was Exactly the same when I was trying to download F1 2021 Deluxe Edition

https://www.xbox.com/en-au/games/store/f1-2021-deluxe-edition/9n2pnvtsr2hb

But then followed this thread and thankfully got it resolved by changing the store location in settings.

Same problem, I bought the ultimate edition and on the microsoft store it appears that I have the deluxe edition, in the invoice history it appears that I bought the ultimate ed.

why does this happen?

I bought Minecraft Windows 10 Edition on the Microsoft store

No, for some reason Minecraft.net does not show the purchased Minecraft Bedrock Windows 10 Edition. I did not run minecraft through the launcher, I downloaded it from the Microsoft store and just opened it without using the launcher.

Having an up-to-date version of Windows 10 does not guarantee that this game actually works on this computer. The system specifications must match at least the minimum requirements.

The Minecraft Dungeons Launcher is not the same version as the windows 10 microsoft store edition, that's why you're being sent to the minecraft website to buy it, since you don't own this version. If you go to https://www.minecraft.net/store/minecraft-dungeons-windows,
you'll notice that there are three options to buy;

• Windows 7 and up: This is the Launcher Edition,
  which you probably do not own.
• Windows 10: This is the Microsoft Store Edition,
  which you probably own.
• Hero Edition - Windows 10: Also the version from the Microsoft store, but the premium edition.

Also note that the microsoft store also shows two versions of Minecraft Dungeons, additionally to the other versions that can be purchased on the minecraft website;

• Windows 10 Edition
• Xbox One Edition

Make sure to have selected the correct edition of it, which is here: https://www.microsoft.com/p/minecraft-dungeons/9P8MK4NC0LJB