I think this is important, not just tangential. The traditional cv is still something most companies will check, one way or another. At the very least, they will use a tool to check for keywords, same thing on job platforms. I personally never update my LinkedIn with the current role, I always think if my employer checks, they would think I am shopping around, so I leave that. But on job platforms, I have the most current CV. LinkedIn never gave me good results anyway, only currently held roles.

But Glassdoor is pretty ok and some other platforms(I can pm if you like) have proven good, they seem to have some kind of alert system whenever a keyword of a recruiter portfolio is triggered and on cv updates. I do think limiting oneself to LinkedIn will definitely make you miss on some opportunities. I spend no more than an hour a month to update etc. Most have auto apply button etc. It is easy to send 50-100 applications within an hour. Of course some of the contacts will be rubbish, just delegate to spam I it keeps happening, eventually unsubscribe. I got some interviews to places where I thought they would never, ever touch me. However, sometimes such companies are desperate to hire. I went pretty far with bitfinex, just for fun and because it's remote, despite knowing sweet little about what is needed to know . Many stories like that.