CPU History
I generally keep the CPU History window from Activity Monitor open all the time to let me know generally how busy my machine is. In Monterey, the CPU History window is a lot huger than it used to be even after shrinking it down as small as it can go. Noticed this both on my 16"MBP from 2020 and my 2016 15" MBP after upgrading.
MacBook Pro 16″, macOS 12.0