Description of problem: The package appears to be missing from repositories
Yes, recordmydesktop was intentionally retired due to the project being abandoned (no new release in 10 years), it contained many crash bugs, was not at all working on Wayland and no-one stepping up to tackle these issues. Please use the screencast function built into gnome-shell or try one of the alternatives suggested on the mailing list when I announced my intention to retire it: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/4RCB6MBC4JVGG4SYLIKUDOOT2REGA6N4/
thanks :)