I agree that there are many great free streaming sites out there, with 1080p and good quality.
But quality is still an advantage of paid services (or acquirung the larger files in other ways). Streaming with higher bitrate costs way more bandwidth (= money) while being marginally better.
It’s noticeable though, if you have a good, large enough display. Especially darker scenes suffer from low bitrate. On my phone I don’t notice it at all.
That’s even true for high bitrate. E.g. I’ve even compared a Reacher WEB-DL to BluRay remux, and the latter was noticeably better — not that it’s worth the additional storage usage.
Global hotkeys have been addressed on KDE, but no applications actually support it — one of the reasons being that no other desktops support it. Typical chicken-egg problem.