No Double Tap in macOS Monterey

I recently purchased a MacBook Air with M1, and Monterey was preinstalled. However, double-tapping doesn't work on the system. I can't double tap on the top bar in apps such as Firefox to drag & drop it. I cannot double tap on the desktop in order to select multiple items.

What can be causing this issue & why would this occur?

This has never happened on any other Apple notebook, or any other macOS.