Iphone system data

Hey guys. Curious how often do you clear system data on your iphone
And if you even know how to do it and why it is important

I asked most of my friends and unfortunately none of them were doing that for some reason.
That's why i found this article https://applenapps.co/clear-system-data-on-iphone/ and sent it to all of them.
Good to know that someone is actually clearing system data from time to time.