I see a lot of threads on HN discussing complaints about how locked down Apple is. I suspect many of the extensions that are problematic for Google never would have even been allowed into Apple's ecosystem in the first place.

In general, Safari's extension system is more restricted than Chrome's, and changes that Chrome is attempting to make to be more similar to Safari's approach result in fierce backlash exactly like this thread (e.g. https://www.wired.com/story/google-chrome-ad-blockers-extens...).