I ran this command on an Intel MacBook 2019 with most recent version of macOS (Tahoe 26.2, xcodes 1.6.2):
$ sudo xcodes install 26.2 --directory /opt/xcode/26.2
I was expecting xcodes to get the Universal .xip. Instead, it got the arm64 flavor. Consequently, xcodebuild threw "Bad CPU type in executable". I had to download the correct .xip manually, run xcodes --path=/path/to/manually/downloaded.zip
I read others reporting the opposite: they get the universal .xip on Silicon. Looks like the poles may be reversed, doesn't it?