From June 5th, 2021 to March 30th, 2023, 33% user give 5-star rating, 33% user give 3-star rating, 33% user give 2-star rating. for Youtube RSS chrome extension.
Works ok but the button doesn't appear for all channels, I suspect because it's unable to find a feed if it can't identify the channels ID.
for some channels (having some name as ID) it gives URL with this name (instead of UCXXX..) - so youtube cannot recognize it as RSS feed link.
Excellent extension! Does what it says. Intuitive design. Simple. Fast. Effective.