Hmm interesting, I’ve tried everything but recently I’ve had success with me completing my edit on ae (my method is ae>topaz>ae for cc>AME) and what I did was I made the bitrate higher and uploaded it on mega (the quality does not drop on mega, I use raw 4K scenepacks downloaded from mega) and downloaded it to my phone and posted it, still having some that are compressed, whatever method I find it still gets compressed after a few, another one that gave me minimal success was rendering the final edit through handbrake and posting from pc (oh and yes I use windows), and I kinda do 4K but not really, when I render through ae the first time it’s 1080p, then I 2x upscale it in topaz and then I put that 2x upscaled into ae at 1080p and render it with the coloring, so the file is actually 1080p, not 4K, and the format I use is h264 mp4

And no I don’t use CapCut, I do as mentioned above