Since 1996, Flash has been integral to many parts of the web, and you have definitely used it at least once, whether you know it or not, sadly, this means losing most of internet history.
There is hope however, people like Newgrounds and Flashpoint have made Flash Player emulation plugins to allow you to interact with Flash media past the end-of-life deadline, Ruffle is an excellent project which doesn’t support all versions of Flash yet, but is in constant development in the hobbyist dev community.
My plan is to try my best to be playing Flash games right up until the plug-in cuts out at midnight.
It’s a shame Flash had to die unnecessarily, it has served us well...
There is a live countdown timer on my website at: https://nostalgia-planet.neocities.org