So there’s been two methods of blocking ads on Twitch. There’s a browser extension, or you can manually add a script to ublock. They both do the same thing, replace the stream with the 480p feed during ads and then switch back to the source resolution when the ad ends. This worked fine for awhile. The problem is that as of a month or two ago these stopped working. Now the stream just freezes …

https://www.reddit.com/r/uBlockOrigin/comments/svzrlv/blocking_twitch_ads/