I watch those videos to learn something new about the product (actual pros and cons, specific feature implementations, ...). But most of the time the "reviewer" basically reads the product description and goes over the list of features that I can find on literally any shop page that has that product.
It's so hard to find videos of people that have actually used the product for longer periods of time and can give an actual review.
Nowadays all review article just work off the specs without using and testing the products. And the user reviews have moved to Amazon, which are mostly very poor quality or just fakes, or possibly reviews for other products. In any case, there are no incentives to give high quality reviews of products, and google seems to have no incentive to show me the few remaining real review blogs.
I've also found user reviews on Home Depot to be more helpful than most. I'm not sure what they're doing to combat spam, but it seems to be working.