Twitter have announced (on Twitter) that an updated camera interaction is on its way. So you’ll be able to access the camera with just one swipe:

See it? Tweet it! Our updated camera is just a swipe away, so you get the shot fast. Rolling out to all of you over the next few days. pic.twitter.com/moOEFO2nQq

— Twitter (@Twitter) March 13, 2019

This is a really good improvement. I’ve even downloaded the official Twitter app again, so I’m ready to try it out.