Does the ZED2 have an integrated IMU sensor?

Yes, the ZED2 has an integrated IMU built-in camera.

Note:-

You can find the required information about IMU sensors and the parameters here on the links below:-

Using sensors Data: https://www.stereolabs.com/docs/tutorials/using-sensors/
Sensors overview: https://www.stereolabs.com/docs/sensors/
IMU overview: https://www.stereolabs.com/docs/sensors/imu/