Ask HN: Is LinkedIn Job Search the worst? Partial outage?

I was deep in one of my semi-regular "Am I using the right tech stack?" career crises, so I decided to use LinkedIn to assess the market for different technologies, understand requirements, number of remote jobs, company profiles, and so on.

For context, I'm currently a mobile developer (Flutter, iOS, Android), but I decided to research other technologies (Rust, Java, DevOps, Vue, JS, etc).

The LinkedIn search is completely ducked. No matter what I searched for, I keep getting promoted results for my old stack (ALL mobile jobs). I searched for Rust jobs, I got iOS, Kotlin, and Flutter jobs. None of those were Rust, even if I opened the ad, I didn't find any mention for Rust. All promoted, no matter how many pages I keep checking.

We tried to search it from my sister's phone, searching for Rust, all she got as a result is different Sales positions (she works in sales).

It's been a while since I searched for other tech on LinkedIn and I don't remember LinkedIn being so bad, so I am wondering if they really got this bad, or they just had a bad deployment and messed up search.

Could be relevant, about 2 weeks ago, I let LinkedIn know I'm looking for jobs as I want to have a second gig, a side job.