Being a lefty I would say no not really (GMO and anti-vaxxers are on both sides), that being said ... I believe the left has really turned the heat up on cancel culture, and that has had a massive impact on discourse.
Not in an informational way the way the right does.
You do see a small effect through raw footage videos. Shaming people videos.
The left owns the mass media (fox not withstanding) so the right needs a video outlet. Radio takes care of audio.
> The left owns the mass media
Not to get too far down a rabbit hole here but the OP was referring to the "far left", which certainly doesn't own the mass media. If anything, centrists own the mass media.
Generally when American Trump/Republican supporters (I won't say right wingers, because I'm sure there's a large portion of conservatives who are not represented by the current corrupt administration) refer to the "far left" they mean the center and regular left. Their personal overton window is just so skewed that they think anything left of Trump is extremist.
But in an attempt to bring things vaguely back on topic: I'm actually curious to know if left-wing movements have been aided by YouTube and to what extent. Its effect on the right is very well documented but on the left I've tended to see the outrage on Twitter, Instagram and Facebook more.