Steps to reproduce:
1. Create a new project
2. In the Build Profiles window, switch platform to Linux
3. Observe the console window
Actual results: Warning: "The following asset(s) located in immutable packages were unexpectedly altered. Making changes to immutable packages isn't recommended because the changes can be lost without any warning during Package Manager operations.
Packages/com.unity.sysroot/Tests
Packages/com.unity.toolchain.win-arm64-linux-x86_64/Editor/Unity.Toolchain.Win-arm64-Linux-x86_64.asmdef
Expected results: No errors/warnings are thrown
Reproducible with versions: 6000.1.0a9
Not reproducible with versions: 6000.1.0a8
Tested on (OS): Windows 11 ARM64
Notes:
The warning is clearable. Not reproducible when using Linux Server
Editor log is attached