If I find an interesting link on HN, I’ll favorite it and post the link to the article and the HN discussion.
You have every right to throw up a little bit about the performative nature of LinkedIn. But in my niche, it’s the nature of the beast.
I do keep a copy of my career document where I note any major accomplishments and the details in STAR format for future projects, review times, 1x1’s and interviews in now a private Notion page.