pkgutil doesn't show Xcode Command Line Tools after upgrade to macOS 11.3

I've upgraded to macOS 11.3 from macOS 11.2.3. I'd installed Xcode Command Line Tools using Homebrew. Before the upgrade, I used `pkgutil` to check if Xcode CLT was installed and I got

    % /usr/sbin/pkgutil --packages | grep CL
    com.apple.pkg.CLTools_Executables
    % /usr/sbin/pkgutil --pkg-info com.apple.pkg.CLTools_Executables
    package-id: com.apple.pkg.CLTools_Executables

After the upgrade from macOS 11.2.3 to macOS 11.3, Command Line Tools is installed and usable. However, I didn't see the same results when using `pkgutil` to check if Xcode CLT was installed.

    % xcode-select --version
    xcode-select version 2384.
    % xcode-select -p
    /Library/Developer/CommandLineTools
    % ls -l /Library/Developer/CommandLineTools
    total 0
    drwxr-xr-x  5 root  wheel  160 Jan  9 07:43 Library
    drwxr-xr-x  6 root  wheel  192 Apr 27 23:15 SDKs
    drwxr-xr-x  7 root  wheel  224 Apr 24 16:19 usr
    % brew doctor
    Your system is ready to brew.
    % /usr/sbin/pkgutil --packages | grep CL
    % /usr/sbin/pkgutil --pkg-info com.apple.pkg.CLTools_Executables
    No receipt for 'com.apple.pkg.CLTools_Executables' found at '/'.

Is it still possible to use `pkgutil` to check if Xcode CLT is installed? Has the package name or location changed?