Guys, the fact that you took out an iPhone on credit does not mean that all other phones are bad. If the video slows down - change the codec in the camera settings to H254. And everything will work fine.
It's just that the weight of the video is decent, but if you tighten it, everything will go like clockwork)), the android is naturally not perfect in this regard, and Apple in this sense is not ideal, on the android the problem is easier to solve by downloading a video converter and converting it, compress, process and load your content wherever you want without loss of quality, the same is the case with downloading movies.
Because the android does not take all formats, and if it does, then the videos go with freezing and failures in iPhones, by the way, there is no such thing, videos are quickly loaded and broadcast without glitches.
Because Instagram has a MOV video format, the iPhone shoots just in this format and therefore does not lose quality. Android shoots to mp4, Instagram when converting mp4> MOV compresses the quality. Most likely, such an agreement is Apple and Instagram. Do you want to fully use Instagram, buy an apple)