Presumably this is an A/B test? I don't see how that's remotely sustainable
LinkedIn has seriously deranked posts with links in the past. Everything within Meta is heavily A/B tested, but it seems feasible that this will become real.
Instagram already does charge for outgoing links, so I would assume that they found that they can sustainably make money with it there, and that it should work on FB too.
Remember how Sears was a thing but they kept making dumb decisions and were also unable to adapt to new realities? Facebook/Meta is like that. Doomed company walking.