well, this is the safer approach
"Since Adobe will no longer be supporting Flash Player after December 31, 2020 and Adobe will block Flash content from running in Flash Player beginning January 12, 2021, Adobe strongly recommends all users immediately uninstall Flash Player to help protect their systems."
but even if Flash Emulation might be an acceptable solution for a web server running games ... what about other scenarios ?
we have legacy VmWare View, Sybase web client, various web cameras that need flash and no emulation is possible,
so having an older version of flash might be the only ( even extremely risky ) option for the time being
BUT to keep on playing:
here are valid flash distros from that last non time bombed version
http://invisiongames.org/forum/index.php?dlcategory=5