That's why this item can be in the creative inventory in the 3rd category "item"
This is the camera can be added on *Bedrock Edition. *
Search in the 3rd category "items". In addition I can't find it on the inventory but I have the option to activate *EDU*Description
Step to Reproduce:
1.Take a camera in the inventory editor and place on the floor. Obversed Result:
The camera is disappeared in the creative mode inventory and commands /give, but it can
still be used in the game while in the inventory.

Excepted Result:
The camera is disappeared in the inventory/command /give, and the tripod camera entity turns the air.