The fact Google makes the browser and the OS for most users certainly puts them at an advantage.
Video is much much more complex than a .mp4 file on a server - the effort required to get the first frame from the server to the users screen as quickly as possible, and then not drop any frames after that, is pretty high to begin with, but it's even higher if you don't have control of the exact way the browser allocates CPU/GPU time for example...
Video is much much more complex than a .mp4 file on a server - the effort required to get the first frame from the server to the users screen as quickly as possible, and then not drop any frames after that, is pretty high to begin with, but it's even higher if you don't have control of the exact way the browser allocates CPU/GPU time for example...