Reproduction steps:

1. Open the attached project
2. Go to Assets → CreativeCore_Shaders → ShaderGraphs
3. Click on any Shader Graph asset
4. In Inspector, click on “Compile and show code”
5. When the progress window shows the “Preparing variants for compilation” stage press Cancel

Expected result: Compiling is canceled
Actual result: Compiling will continue

Reproducible with: 12.0.0 (2021.2.0b1), 12.1.7 (2021.3.6f1), 13.1.8 (2022.1.9f1), 14.0.3 (2022.2.0b1), 15.0.0 (2023.1.0a3)
Could not test with: 10.9.0 (2020.3.37f1), 11.0.0 (2021.1.28f1), 12.0.0 (2021.2.0a21) (Progress window doesn’t have “Preparing variants for compilation” stage or Cancel button)

Reproduced on: Windows 10

Note: To successfully reproduce the issue Cancel should be pressed after the first stage of the compilation. The first stage could be recognized when the status window says “Shader \{shader graph path} xx of xx” where “xx” are numbers. Also, a user is unable to gain control of the editor until the compilation is done