Just buffers. It's unusable. I have a 900mb fibre service that gives me 900mb. I work for an ISP. I have a really well engineered mesh network. This doesn't work on android devices. FireTV 4K. Fire Cube TV. Apple TV 4k. Sony Bravia. Whether on WiFi or ethernet. If on the odd occasion it does work by unistalling (which doesn't work reliably) if you pause that's it. Blue circle of death. Clearing the cache doesn't work. Ditching the subscription. Absolutely no need for a kludge like this in 2022.