There might be a motion sensor (green bar) above the door to release the Maglok, and therefore tied to the fire system.
Unless that’s not a motion sensor and just a status indicator.
There must be a pull station and credential over-ride out of view.

The panic-bar may have an integrated switch contact to release the Maglok for one touch egress, and since I don’t see any drop loop (which would be on the secure (this) side of the door), they may be using electrified hinges.
I doubt any of this to be the case.

The push-bar keeps the door latched for when the fire alarm deactivates the Maglok.

The push-bar has the dogging feature (hole) and therefore MIGHT not be fire rated, as panic-bar equipment cannot be dogged-down capable in my area.
The dogging mechanism may have been removed, still not approved as not rated for this purpose, and now modified.
If the push-bar plate is a replacement from another unit, part substitution might negate it’s fire rating.
The push-bar is not mounted at disability code height.

The knob could be a dummy trim to pull the door fully closed.

The Plates cover old windows, from better days.

Another Bill Elliot spec