Twitter user Krissy Brierre-Davis (@krissys_kitchen) highlighted a space bar trick on the iPhone. A lot of users have been thanking her ever since. Since she tweeted, the tweet has garnered 35K retweets and 77k likes.
With iOS 12.1 and later, Group FaceTime makes it easy to chat with multiple people at the same time. It allows to chat with 32 people at a time.