I enjoy HN as much as the next guy but it's easy to get high comment counts when you count archive.is links (and the ensuing 4 levels nested argument about why they don't work with Cloudflare DNS and who's in the right on that), complaints about CSS/scroll hijacking, and general pedantry. You can find many cases where interesting but pretty specific kind of technical stuff sort of languishes at the bottom of the front page whereas flamebait type articles that tap into the vague libertarian anti-surveillance sentiment that is popular here get hundreds of comments. Not that I don't generally agree with it, just that I've heard all the arguments a million times and I'd rather learn about how to use AVX2 instructions. I think the algorithm should have some sort of subject based ranking, where highly repetitive topics are penalized. Or maybe it already does and the sheer popularity of the stuff makes it show up regardless.
That being said, I haven't seen that many interesting things on Lobsters that weren't also on HN. Only one that comes to mind is the Go 1.22 inlining overhaul but I just googled it and apparently that was also on HN, I just missed it.