GNU/Linux Mint 20 Installing Flash Plugin – Step by step Guide
How to Install Latest Adobe Flash Plugin on Mint 20.x Ulyana/Ulyssa/Uma/Una 64-bit GNU+Linux desktop – Step by step Tutorial.
And the Adobe Flash Player Plugin for Linux Mint allows Browsers such as Firefox, Chromium and Opera to display Flash Media on web pages.
Finally, the Latest Flash Plugin Version is in PPAPI form that is Bundled in Google-Chrome with the Required libpepflashplayer.so.
Especially relevant: to know how Flash has been RETIRED from Adobe on 31 December 2020!

1. Launching Terminal
How to Quick Start with Command Line on Linux Mint
Update Apt Repo Sources with:
sudo apt update
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