Also automatic downloading from preview has no limit on video size, the video in the link above is 500 megabytes and it is automatically downloaded too.
Now imagine that you are on a limited internet connection and you are get 100 links with such huge videos and they all start downloading. Yes, you can click on the cloud icon to stop the download, but try doing that on 100 links. Also, when you re-enter the chat, the download automatically starts again.
This behavior doesn't exist on Telegram Desktop, so why isn't it considered a bug in the iOS app?
Yes, auto play and auto download are enabled by default in Telegram apps, but there is a size limit there, but here there is none and it is not customizable or subject to the already existing auto download setting.
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