It is possible to upload video files at original quality on Micro.blog. it’s not currently supported..
The video I’m uploading is a 1080p mp4, 47MB and pretty good quality … But micro.blog is converting it to a 50MB file at 360p that looks really awful … I would rather have the original file hosted on micro.blog as I have found a suitable compression that works for the video.
But @manton suggested a hack, that works perfectly.
Simply upload with a different file extension and rename afterwards.