Samsung Galaxy S20: How to Adjust the Vibration Intensity and Pattern
 

The vibration motor used for notification in the Samsung Galaxy S20, S20+, and S20 Ultra is set to full blast out of the box. Thankfully, you can adjust its intensity a bit so your phone doesn’t slide off a table every time you get a phone call.

https://www.howtogeek.com/662735/sam...y-and-pattern/