So uhh...sorry for this comment being as long as it is. I was initially basically just going to leave the first paragraph and then link to two or three videos demonstrating the claims. But then I wanted it to be of value even if you don't spend the time watching the videos. And so I had to rewatch the videos myself to summarise salient points. And that led me to finding and rewatching yet more videos. And then I had to summarise those. And the comment just blew out.

The first paragraph should serve as a TL;DR if the rest is too much or not worth the time. And jump to the last paragraph for other recs.

Sabine Hossenfelder

Hey, just be very careful about her. She knew her stuff with astrophysics, but has since become very jaded even within what was once her own field, and she has a nasty habit of speaking with great authority about matters outside her expertise, and getting it wildly wrong. And often doubling down rather than adapting when corrected. And also of spreading a message that emboldens and encourages science deniers, despite not being a science denier herself.

Here's a video about it from a former ABC journalist who I think is being overly generous to Hossenfelder at times (in particular regarding Hossenfelder's take on trans people), but which nonetheless does a good job of laying out the problematic way she presents certain views.

And here are a few more videos that take a more directly critical approach. Professor Dave Explains' first video. This is probably the strongest, because it makes every effort to present things from Hossenfelder's point of view and assume she means well. One key thing this video does is point out that the fact that she comments on fields outside her expertise is not a problem. The problem comes when she refuses to properly update her beliefs (and retract claims) when she gets corrected, and she often does not sufficiently caveat her views with her lack of expertise in this subject.

Professor Dave Explains' second video, a followup a week after the first addressing some responses to the first one.

eigenchris explains why she's wrong about trans teens. In short, Hossenfelder plays the bothsidesism game to appear as reasonable, but to do so ignores significant amounts of evidence in favour of trans affirming care, and ignores significant problems with the limited evidence in favour of "rapid onset gender dysphoria" (i.e., the idea that people think they're trans even though they aren't purely because it's "socially popular") in order to present it as a reasonable view.

Rebecca Watson (Skepchick) also does a much shorter video about this trans misinformation. She also points out that Hossenfelder hides her citations behind the Patreon paywall, making it impossible for most viewers to do basic fact checking. Watson also follows up about how Hossenfelder is wrong about capitalism. The video links over to this much longer video by Unlearning Economics (a creator I have watched before and enjoyed, but I have not seen this particular video recently enough to recall it), but spends most of its runtime explaining the many ways Hossenfelder was wrong about penicillin, by falsely claiming it only took off thanks to capitalism, despite the Australian Government being one of the biggest drivers of its uptake by producing enough to use for the Australian Army during WWII (with enough leftover for civilian use), and despite numerous capitalists from the UK and US actively choosing not to invest in producing penicillin until promises of significant tax breaks for aiding in their own war effort.

Now, I've got my own separate problems with Watson that have led me to stop watching her. (Namely: that she seems more interested in dunking on people than actually spreading good information. The Adam Conover video was an awful hit piece, and the pinned comment was nothing but anti-union propaganda. And she refused any update, not even pinning someone else's comment pointing out the update, after Conover put out a complete retraction of the thing Watson was dunking on him for. Not to mention the significant amount of time in that video spent dealing with style issues rather than the actual substance. Just gross.) But in these two videos she does a really good job of laying out the facts and deferring to experts who can demonstrate why Hossenfelder is problematic.

Dave has a third video. It's much longer and might be worth watching if you're still on the fence. It shows some of the more recent claims from Hossenfelder of her getting more and more extreme in her anti-scientific institutions takes, and then does interviews with current scientists about what they do and how it conflicts with Hossenfelder's warped explanations.

For former academic astrophysicists who occasionally make videos about the problems with academic science or with the popular response to science, I would highly recommend Angela Collier and Dr. Fatima. Though neither are exactly the same niche that Hossenfelder purports to be in, since they don't typically do science news reporting.