I am more used to install and uninstall software frequently...
Old habits die hard, especially old, bad
habits... but don't worry, you'll get over the withdrawal pangs in time.
Scott_R is right. You are not using Windows, you're using Linux.
Linux is not Windows, and because of that, many "adjustments" that you're used to making for Windows' weaknesses are no longer necessary.
The problem here is more being aware that having to hunt down and manually remove dependent sub-processes and libraries of a program you've uninstalled is not normal
-- it may be ordinary behaviour that you're used to, but it is not the behaviour of a normal, reasonable, stable OS.
Walking well with a limp is not the same as having two healthy legs--- and one might be surprised that, after hip replacement surgery, one walks less well for a time than one did with the limp. After getting new glasses, one trips and stumbles for the first couple of days, because you can't see as well as you did with the old (misaligned) glasses. Old adjustment habits die hard, but they do, in fairly short order.
You'll soon get used to not having to worry about things that the OS should be taking care of for you anymore, because the OS is actually taking care of them, now