Steps to reproduce:
{}{{}}1. Create a new project
2. Change the platform to Linux
3. Observe the Console

Actual results: 
{code:java}
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.linux-x86_64/Tests/Editor/Unity.Sysroot.Linux-x86_64.EditorTests.asmdef
  Packages/com.unity.sysroot.linux-x86_64/Editor/Unity.Sysroot.Linux-x86_64.asmdef
  Packages/com.unity.sysroot/Tests
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/Third Party Notices.md
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/Editor/Unity.Toolchain.cs
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/Tests/Editor/Unity.Toolchain.Macos-arm64-Linux-x86_64.EditorTests.asmdef
  Packages/com.unity.sysroot
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/Tests/Editor
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/LICENSE.md
  Packages/com.unity.sysroot/Editor/AssemblyInfo.cs
  Packages/com.unity.sysroot/Editor/NiceIO.cs
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/Editor
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/package.json
  Packages/com.unity.sysroot.linux-x86_64
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/Tests
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/ValidationConfig.json
  Packages/com.unity.sysroot.linux-x86_64/LICENSE.md
  Packages/com.unity.sysroot/package.json
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/CHANGELOG.md
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64
  Packages/com.unity.sysroot.linux-x86_64/Tests/Editor
  Packages/com.unity.sysroot.linux-x86_64/Editor
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/README.md
  Packages/com.unity.sysroot/Tests/Editor/EditorExampleTest.cs
  Packages/com.unity.sysroot.linux-x86_64/Editor/Unity.Sysroot.cs
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/Editor/Unity.Toolchain.Macos-arm64-Linux-x86_64.asmdef
  Packages/com.unity.sysroot/Editor
  Packages/com.unity.sysroot.linux-x86_64/Tests/Editor/EditorExampleTest.cs
  Packages/com.unity.toolchain.macos-arm64-linux-x86_64/Tests/Editor/EditorExampleTest.cs
  Packages/com.unity.sysroot/Editor/Unity.SysrootPackage.Editor.asmdef
  Packages/com.unity.sysroot/Tests/Editor
  Packages/com.unity.sysroot/CHANGELOG.md
  Packages/com.unity.sysroot/Editor/Unity.SysrootPackage.cs
  Packages/com.unity.sysroot.linux-x86_64/CHANGELOG.md
  Packages/com.unity.sysroot/Tests/Editor/Unity.Sysroot.EditorTests.asmdef
  Packages/com.unity.sysroot.linux-x86_64/package.json
  Packages/com.unity.sysroot/Third Party Notices.md
  Packages/com.unity.sysroot.linux-x86_64/Tests
  Packages/com.unity.sysroot/LICENSE.md
  Packages/com.unity.sysroot/README.md
  Packages/com.unity.sysroot.linux-x86_64/README.md {code}
 warning is thrown
Expected results: No errors or warnings are thrown

Reproducible with versions: 6000.1.0a9, 6000.1.0b7, 6000.2.0a4
Not reproducible with versions: 2022.3.58f1, 6000.0.39f1, 6000.1.0a8

Tested on (OS): macOS Sequoia 15.3 (M1)