Fedora may be becoming the default for desktops, not for servers (Debian possibly the default for servers).
https://commandlinux.com/statistics/linux-server-market-shar...
At least the infographics down the bottom are obviously full of slop
Not sure I'd put any weight whatsoever on those figures!
(and how would they even compare a commercial offering with something like Debian that doesn't even have popcon enabled by default?)