Just uninstall it, I doubt you will ever notice. I have never had it installed on my machine. It's pretty "old" technology. For instance iPhones have never supported Flash.

>Hi,
>
>My computer showed me a message this morning that "Adobe support for Flash Player will end on December 31st, 2020".
>The message prompts me to Uninstall the Flash Player.
>
>If I do uninstall it, what may stop working on my PC (Windows 7)?
>
>Mainly (outside work) I use YouTube and a few French learning sites that have videos embedded into their sites.
>Do you think it is a good idea to uninstall Flash Player?
>
>TIA