This camera could be the inventory when the Education Edition toggle is enabled

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.