Preface
There is a wide-spread problem for beginners related to IDEs. It comes quite hard to uninstall it completely. E.g. Android Studio and other JetBrains IDEs could leave gigabytes of SDKs and other files that could help restore it's state on reinstallation (LMAO imho) when one uninstalls them. There is a plenty of recipes on how to remove this "garbage", but some information is still not found easily.
Main question
This page says that IntelliJ IDEA could be removed with uninstaller but it leaves some folders to remove manually ..... OR just u use the ToolBox and click Uninstall in it. So this is about what I didn't find: whether the ToolBox is able to remove IDE completely or not?
Secondary question
Is there a piece of theory to learn (operating systems architecture and constraints maybe) why those tools are installed this complicated way and scattered across the system wherever it is possible and don't provide a way to remove them completely. I hope this piece of theory potentially gives universal ability to clean up after removing stuff.
