Why can't I see all simulators next to the building button on Xcode

Hello guys

I downloaded some simulators on Xcode, and I can see them from Xcode-Window-Devices and Simulators, please check

But when I try to test my app on these simulators, some of them are missing.

E.g. iPhone 13

Why? Please help, thank you.

Why can't I see all simulators next to the building button on Xcode
 
 
Q