Max Schrems, the Austrian activist lawyer whose 13-year legal crusade against Meta is what gradually removed those options

I wonder, does anyone know how would one go about acomplishing something like this? One of major websites here in Czech, and a major search engine, has started doing exactly the same thing - pay or agree. And I really don’t like that. Are there organizations you can contact, or do you have to have the resources to just sue them?