This is a wonderful extension that allows unlimited buffering of video in any resolution. The settings are thorough and make the extension very customizable.

The only small issues are that it stutters when seeking in 4k, breaks sponsorblock, it's limited to 140s buffering in incognito, and downloads are all 720p for some reason. These are only nitpicks.

Overall, this extension is amazing, and I am grateful to the developer.