I thought the connection I was on before was pathetic dog shit (moved rural and went from 1g to 100mbps up/down at both) and the only issues I ever had was specifically peacock because that app is designed to work just poorly enough that I'll struggle with it
Literally haven't thought about video buffering since like... 2014, 2013? Unless of course my Internet drops out. And that includes on mobile devices
The secret is that 90% of the time for 90% of people, the current method of "just in time" buffering works as good or better. Especially if you're on your phone you don't want to be paying for buffering data far into the future.
But the 10% of the time that it DOESN'T work when it usually does, really sticks in your brain so everyone has the experience of it not working now.