How do I find Minecraft, but already bought it but not shown in the profile?

I have been installing Minecraft for my brother for a long time and I had already bought the game and several other versions. Now I can only see the purchases made in my Microsoft Accout and nothing at Minecraft.net or Mojang. Can someone help me how I can find the game or do I have no chance and have to buy it again since it is stored under the IP address of the PC? I want to install it on another laptop. I would be very happy about an answer… I get the crisis.

Which version of Minecraft did you buy and on which platform do you want to play?

So I have now downloaded the Minecraft lounger, javaedition for Windows 10 and the purchased products are: Minecraft for Windows 10, Minecraft Store Item 10, Minecraft Store Item 2, Minecraft Store Item 50 … These purchases were made in 2019 and 2018. I can do that take purchases from my email and until yesterday I saw them in the store. No longer, and even when I found the purchases in the store, I couldn't download them.

That is a bug. Just download the launcher here:

https://www.minecraft.net/.../download/

and sign up. Ps:

never buy anything from the Microsoft Store

If you have the Java Edition, then you definitely have a Mojang account. Try to register with mojang.com.