There are a few postings on this topic, but I can’t find an answer.
My camera (Firefly 8SE) has recorded in 1080 at 60fps. The raw video plays back fine using vlc. If I encode the video using the Shotcut YouTube presets the Shotcut created video also plays perfectly with vlc, so Shotcut encoding is not degrading the video. When uploaded to YouTube, if displayed in full screen or cinema mode, with playback set to 1080p/60 the video is very pixellated - it is as though Youtube thinks the original video was a lower resolution than 1080 and it’s ‘upscaled’ it.
I’m sure it’s a setting somewhere, but for the life of me I don’t know !
Any help much appreciated.