If you want to view HD content you’ll need to be a Standard subscriber ($15.49 / £8.99 / AU$16.99 per month) or have a Premium subscription ($19.99 / £13.99 / $22.99 per month).

For some strange reason, however, some owners of Pixel 4, Pixel 4a, and Pixel 5 phones are now reporting they're at Widevine L3. In other words, they're stuck at 540p streaming max.