Customization = getting it to do what you want, which can be a pain in the ass even for basic functions. Here's an example I had to deal with: hot corners in both Windows and MacOS let you turn off the display so you can do things like play a YouTube video at night to listen to as you fall asleep, but also not lock the screen or put the machine to sleep entirely. I had to look up how to make it do what is a simple thing to achieve in the other two big OSes.
There really should not be a learning curve for "if you put your cursor here, the display turns off."