pro tip
if you use android and need to upload a video but it won't upload due to size try using a compressor app
there are loads of apps on play store I'd recommend
play store: panda app
/nosanitize
https://play.google.com/store/apps/details?id=com.pandavideocompressor
or
FFShare(via F-Droid)
https://github.com/caydey/ffshare
both will allow size of video file to be compressed into a smaller size then try uploading