Hi,
Thank you for writing to Microsoft Community Forums.
I understand that you would like to know the alternatives for Adobe Flash player.
With the announcement of Adobe ending support of Flash Player on December 31, 2020, many web browsers will no longer support Flash content. HTML5, WebGL, and WebAssembly can be used as an alternative to Adobe Flash.
AdditionalInformation:
Isthere a replacement player for the Flash player?
TheEnd of an Era – Next Steps for Adobe Flash
https://blogs.windows.com/msedgedev/2017/07/25/flash-on-windows-timeline/
Updateon Adobe Flash Player End of Support
https://blogs.windows.com/msedgedev/2020/09/04/update-adobe-flash-end-support/
Hope it helps.