The Cache Cleaner tools only inspect Pacman cache, but not the yay one.
Feature request: Inspecting and clean yay cache.
Inspecting and clean the yay cache could be usefull in the case of a Python upgrade:
the builded packages in the yay cache was build with a invalid Python site-packages path (python3.13/site-packages instead of python3.14/site-packages), resulting that trying to resinstall them will still install them into a invalid path, unless you remove their cached build.