Since Adobe no longer supports Flash Player after December 31, 2020 and blocked Flash content from running in Flash Player beginning January 12, 2021, Adobe strongly recommends all users immediately uninstall Flash Player to help protect their systems.
Why would you want to use Flash in 2021? Since Adobe announced that it will no longer be updating the flash player, there is no reason to continue to install older versions as there are safer, more secure, and better-performing options.
Many users today continue to move on from Adobe Flash to similar yet better software, as it is now seen as an unsecured solution.