These are used by random i686/x86_64 software, particularly things built with Qt (which usually ship Qt itself but not these).
Add a new definition for a RootFS to be used by FEX (https://src.fedoraproject.org/rpms/fex-emu). This is based on the upstream manifest (https://github.com/FEX-Emu/RootFS/blob/main/Configs/Fedora_40.json). Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>