I’m really disappointed in youtube removing the easy choice of video quality, I very frequently jump from 720 to 480 to the lowest option depending on how I’m watching the video that minute, because I watch most of my YouTube through mobile. I usually stick at 480, because it loads fast and I can read most things I want to, but if I cannot, I will load it to 720 then load it back at 480  and if I just want to listen to what I’m watching, I’ll load it at the lowest quality until I feel like changing to see something on the screen better.