

For business usage, it’s really just Debian and Red Hat as options, along with their derivatives. For personal use, add Arch to the list.
Other distros exist but people don’t generally need to worry about them, their stability or compatibility, etc. This includes developers as well as users.
I blame the Labour voters for clinging to the party Thatcher is proud of and not being willing to vote Green.
If every Labour voter had just compromised a little and voted Green instead, we wouldn’t have all of these problems.