1. Opening the media library by swiping left
So far, the media library is opened by tapping on the icon in the chat bar. I think it would be very convenient if this were also possible by swiping left in the chat. This applies especially to users of smartphones with large screens which they want to operate with one hand.
2. Open message details by swiping the message bubble left
Message details can be opened via context menu. It would be particularly useful in groups to also be able to access the details by swiping the message bubble left to see who has already read a message. WhatsApp and Threema do it this way.