On the far-right, we have authoritarian politicians openly mingling with fascists and neonazis. Le Pen in France, Reform in UK, whatever parties in Germany and Italy... Not to speak of the counties where they are _already_ in power like Hungary.
On the far-left we have... well actually, who is left enough that they'd be as "far" as the fascists and neonazis are on the right of the spectrum? I'm not aware of any party or politician with any sort of influence that'd be that far left. Is anyone proposing full-on marxism? USSR-style or chinese-style central planning (not that anyone on the left considers these a model to repeat)? The "communist" and "socialist" parties are wayyyy more centrist. The political horseshoe actually looks more like a hook.