What does indexing have to do with actually getting to own your data & not participating in corporate-owned social media? If you want to straight hide it all, you would never post it to the internet. Most of us sought the refuge of Lemmy to avoid these platforms & know our post aren’t harvested to profit for a Lemmy IPO.
Recruiters can find you regardless, but also are not very useful for getting a job versus having a network & the cut they take means you get the shaft if hired thru them too. A platform like LinkedIn is drivel that will absolutely rot your mind so it should be an easy skip.