This is usually because the vibrating switch of voice and video call reminder is turned on. If you don't want to receive the vibration reminder, turn it off. Let me share the specific setting methods below, hoping to help you.

(Demo version: WeChat 8.0.32)

The specific steps are as follows:

1. After opening WeChat, click Me in the lower right corner, and then click Settings.

2. Enter the setting interface and click New Message Notification.

3. Then click the voice and video call reminder.

4. Enter this interface and just turn off the vibration switch.