Google Technical Guidelines for Review Snippet state:
Don't aggregate reviews from other websites.
Should I understand here that they do not want third party content here ? Like the former Facebook reviews. Are Google reviews themselves ok? Or this is only intended to be used on websites that have their own review system.
Context: a local business website.
Don't aggregate reviews from other websites.
. The docs also have a reference to why in this blog post. developers.google.com/search/blog/2019/09/…other websites
on this page though.Don't aggregate reviews from other websites
. That article had a link to the blog post as to "self serving" aspect.