Unlawful processing of data is absolutely not “opt out” by default, and simply assuming that “legitimate interest” applies does not mean that you can allow on opt out.

Here's just a quick reminder that if you're a LinkedIn user based in an EU member state, and if you do not believe that “legitimate interest” applies, you can file a complaint with your national supervisory authority (SA)/data protection authority (DPA); see https://en.wikipedia.org/wiki/National_data_protection_autho...