Camera not working after update ios14.5.1

See this, If the camera or flash on your iPhone, iPad, or iPod touch isn't working - Apple Support and if that does not help, use the Get Support link at the top of the page here to contact Apple Support for assistance.

Honestly that’s all you guys can say and do. It is clearly a update problem. If the camera is not working so many apps are connected to it. It used so much time and we get no were. Fix it

If it was clearly an update problem, more people would be experiencing it. It is something with the poster's phone. They have to troubleshoot it, and if that does not help, contact Apple.