The platform itself - i.e. the technical bits - is not "far-left", it just ended up absorbing the most recent victims of Musk-phobia. In that way is a mirror image of what happened to Twitter-alternatives from back when Twitter was run by more or less the same crowd as that which now insists on migrating to BS: something like Parler became a haven for those who were pushed out and with that ended up being a "right-wing" platform even though the technology (based on Mastodon) itself was no "right-wing". Wikipedia ended up with a left-wing bias due to the influx of ideologically left-leaning editors (academics and ex-academics with time on their hands), not because Mediawiki is a "left-wing" wiki engine.
Its the continuation of the echo chambers but platform specific instead of say the algorithm on a platform focusing content your way. Or potentially a super concentrated version since you have both a platform that leans one way, so the the content selection via recommender is limited by its range.
