Webms with sound uploaded now to Gfycat have a noticable quality loss.
Comparison sound / no sound
So I guess I will continue to upload there without sound until they fixed the quality.
Gfycat (sound / no sound)
V1 : 1080p - 720p / 1080p - 720p
V2 : 1080p - 720p / 1080p - 720p
Webmshare (sound)
V1 : 1080p - 720p
V2 : 1080p - 720p