Adobe has started to display alerts on Windows computers recommending that users uninstall Flash Player. Adobe will stop supporting Flash Player after December 31, 2020 and will block Flash content from running in Flash Player beginning January 12, 2021. Adobe strongly recommends immediately removing Flash Player from your system by clicking the ‘Uninstall’ button below. If you are actively using Flash content on your computer, it is strongly recommended that you remove Flash Player now and not bother waiting until it no longer works. The default value of the EOLUninstallDisable is 0, which allows the uninstall recommendation alerts to be shown.
Source: https://www.bleepingcomputer.com/news/software/adobe-now-shows-alerts-in-windows-10-to-uninstall-flash-player/