Most applications clog up the cache space on your device’s memory. You have to delete the cache manually which is not convenient. Fedilab is one of the few applications that has a self-cleaning cache function when exiting the application. Why don’t many other apps have a feature to disable caching or self-clear the cache?
Caches by design should be self cleaning
It’s possible. In the YouTube application, this is really true, but in many others the cache is not deleted by itself.