In 9 years of using content blockers I've come across I think one site that eventually prevented ad blocking without resorting to JS: YouTube.

That's it. I've occasionally had to add a custom blocking pattern but essentially nothing else has been impossible to block.

I can't think of many other "half assed solutions" that have worked as advertised for almost a decade.

What do you mean? Safari also supports regular WebExtensions for advanced blocking. I truly don’t know what you’re referring to.

It's even more limited than MV3, let alone MV2