Apple’s HLS spec has examples for AVC and HEVC that fall in line with those numbers and they are familiar ranges to anyone who has done any live streaming recently.
Those are largely based on what’s needed to view SD/HD content encoded with AVC and 4K content encoded with VP9 or HEVC.
What if I told you I could get you a sweet deal on a beautiful 1080p movie for less than 300 kbps? How about some stunning 4K under 700 kbps? Sounds too good to be true, right? Especially when you look at the recommended internet connection speeds from services like Netflix, YouTube, and Disney+ :