Firefox

Yes, probably. But there are alternatives to circumvent their current restrictions and I think there will always be. If you add those methods, maybe the balance goes the other way around. For example, I'd go the Freetube way (invidious) instead. If they keep investing on preventing me to use Invidious, is it worth it for them? We will see.

If bandwidth was the problem, then they should allow Android systems to switch from video to audio-only when the screen is off or they could limit the resolution and fps to those using adblockers, without denying access to view. People using Firefox+uBlock already made a choice to not be their "clients". At this point they should just count their blessings, which are still a lot, and let Firefox+uBlock users be or just close their pitty platform to their users as Facebook does. It's here where their dilemma lives, are they gonna be another Facebook?