If you haven’t removed Flash Player yet and want to do so, then here’s what you need to do in order to remove it from either a Windows 10 computer or Apple’s macOS. (ClickToFlash, if you have it installed, might be in the Library/Internet Plug-Ins/ folder in your home folder, rather than at the root level of your startup drive.
I also moved ClickToFlash (ClickToFlash.webplugin) to this disabled plugins folder. While you might be content to just leave things as they are, Adobe has actually advised users to immediately uninstall Flash Player from their computers to protect their system. All you need to do to disable them is move them out of /Library/Internet Plug-Ins/. However, over the years, Flash eventually got replaced and it ended up being more trouble than it was worth, so much so that at the start of 2021, Adobe officially ended their support for Flash.
It also introduced an era of the web where many web developers used Flash to create dynamic websites. It opened the door to allow platforms like YouTube to exist, while also providing a tool to developers to allow them to develop fun web-based games. For many years, Adobe’s Flash was the darling of the internet.