Asus has started rolling out Android Marshmallow update for the Zenfone 2 Laser (ZE500KL) with build number 188.8.131.52_M3.6.44.
According to the official changelog Asus has removed the following apps from the Marshmallow build of the device:
Google settings (Integrated in ASUS Settings)
Although Google Calendar, Google Messenger and Dr. Booster apps would still come pre-installed while Asus Email, Asus Calendar and Asus Messaging have also been removed.
The company also recommends that before installing the Marshmallow update on your Zenfone 2 Laser you should move apps to the internal storage. The update is being rolled out slowly and you can check for software updates from settings, if you haven't got the notification yet.