Linkedin used to trick people into thinking you have to pay to see someones profile when you can see it just fine by logging out. That is not against Googles policy. Not sure if they still do that, but I used the logout trick a lot a few years ago.

Google does document a way to mark paywalled content and have it indexed without it being considered cloaking: https://developers.google.com/search/docs/data-types/paywall...

You sure about that? How big qualifies as big in your eyes? Medium implemented homepage cloaking in November of 2019 and within a month they lost 40% of their overall search visibility:

https://www.onely.com/blog/medium-lost-half-visibility/

They show the abstract or the same bit of the headline and maybe a paragraph you see when hitting the page. Googlebot doesn't get the full text.