[cable]

It is interesting when it'd often treated as if increasing resolution is the be all and end all, I'm sure I remember reading the BBC had a choice if increasing the iPlayer to either 1080p or 50p, and they went with the latter because the trials suggested it gave a bigger perceptible quality increase.

I don't recall people complaining when Freeview HD started doing 1080p25, I do however remember complaints when they got new coders for BBC hd and dropped the bitrate. 

As seen with the BBC iPlayer app (my Samsung TV even shows the change from 60 to 50 onscreen), the app itself could technically force 50fps over 60fps, which would help apparent jerkiness too, most streaming devices are 60 by default and people seldom changes it. The colourspace of the device can also affect the perceived quality, my xbox seems to change the colours when ITVX loads for some reason - I don't get that on other devices. Netflix, Paramount+ and Disney+ on my Chromecast with Google TV look far superior to the native ITVX app (its certainly HD but the colours are off like the reds are boosted) but if I cast from the ITVX app on my S23 Ultra to the same device and the picture quality is far better (same input, same settings - 1080p SDR).

50fps as standard devices e.g. SkyQ/Sky Stream looks excellent.