I installed WSL Ubuntu 20.04 on my PC with wsl --install. Then I read the System Architecture info in the Microsoft Store for Ubuntu, and it says "arm64". However, the CPU is Intel 12900K. Shouldn’t it be "amd64"?
>Solution :
It says:
Architecture: arm64 x64
Meaning it will run on either ARM or x64 (Intel/AMD). That’s not to say it’s platform independent. Technically, of course, it’s a different package that gets installed for each architecture depending on your system.
In your case, of course, it’s running x64 (a.k.a. x86_64). You can confirm this from within Ubuntu by running uname -a:
Linux Revel 5.10.60.1-microsoft-standard-WSL2 #1 SMP Wed Aug 25 23:20:18 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux