What to use for browser flash support?

[Ralf Mardorf]

For most worse scenarios I installed https://www.google.com/chrome on
Arch Linux.

https://chromium.googlesource.com/chromium/src/+/lkcr/docs/chromium_browser_vs_google_chrome.md

If even chrome should fail, then something is very, very, very, very,
very fishy with the website.

However, actually nothing should rely on a dead man walking, aka flash
at all, IMO something is already a little bit fishy, if it can't be
played with HTML5, given that even most used operating systems (e.g.
iOS of Apple smartphones) by the masses can't use macromedia/adobe
flash.