What process handles Force Touch? The Force Touch (URL previews and word definisions) of the trackpad of my MacBook Pro 13" TouchBar often stops working and it works again after a reboot, but I'd like to find a quicker way to make it work again.

What's the process that handles Force Touch on macOS? Then I could try to kill it and see if it works again after restarting.
I did not find the process, but I found out that if the force touch issue is limited to Safari, just restarting it fixed the issue in my case. I guess having multiple days of uptime does have some drawback once in a while.