How do I turn off the vibration when calling?

[mimimix]

In the call notification only mode, when you press the side button, the watch stops vibrating.
I recently switched the mode to full calls (the ability to accept a call from the watch). Now, when you press, hold, or click a few times on the button, nothing happens.
What am I doing wrong?

GTS 4, ZOS 2.1 - 5.0.3.3