Tracking users after App-uninstallation

App developers use targeted advertising. They show advertisments for their app to users who uninstalled the app recently. It looks like there is a new industry coming up: uninstallation-tracking.
There seems to be no easy way around this practice.

https://www.bloomberg.com/news/articles/2018-10-22/now-apps-can-track-you-even-after-you-uninstall-them