There is no doubt that the transition from Python 2 to Python 3
has been a difficult one, but Linux distributions have been particularly
hard hit. For many people, that transition is largely over; Python 2 will be
retired at the end of this year, at least by the core development team.
But distributions will have to support Python 2 for quite a while
after that. As part of any transition, the version that gets run from
the
python binary (or symbolic link) is something that needs to be
worked out. Fedora is currently discussing what to do about that for
Fedora 31.

Source: LWN.net – [$] Fedora mulls its “python” version