I had a little problem about updating macOS Catalina yesterday and waited until the computer finally returned to normal at night. In order to effectively clean up the system trash, I am going to use CleanMyMac to clean up the system.
CleanMyMac X is a powerful Mac system garbage cleaning tool, which can remove extra language packs, system caches, applications, PowerPc software runtime libraries, etc. on the Mac system. It is a good tool for thinning your hard drive. It should be considered the best system cleaning software on macOS.