https://ruffle.rs/
I've used it, not anywhere near 100% compatible, but interesting. I have noticed a few sites using it and have ran the extension on some computers...
https://ruffle.rs/
resurrecting some of those old games:
https://en.gameslol.net/zuma-s-revenge-67.html
Oh! I didn't know they hand desktop apps too:
https://ruffle.rs/downloads
https://ruffle.rs/downloads
Desktop Application
If you want to run Flash content on your computer without a browser in-between, we have native applications that will take full advantage of your GPU and system resources to get those extra frames when playing intense games.