Sorry for my English, I'm not a native speaker.
I'm new to Linux, using Manjaro KDE and enjoying it.
The problem is I can only watch videos on Amazon Prime Video in SD quality (no HD) so the image is very bad. Even the HD icon doesn't appear.
I have already tried Firefox, Chrome, Chromium, installing Widevine and Hal, changing the User Agent.
On this page https://www.primevideo.com/help?nodeId=202064950, it says:
" You can use Chrome to watch Prime Video on Linux/UNIX operating systems (including Chrome OS)); however playback will be restricted to Standard Definition (SD). "
I contacted Amazon support and they said Linux is limited to SD and they would send this issue to programming but I doubt they will fix this.
Is there any way that I can watch in HD quality?