You can check the cycle count using the System Information app in the power section. Option-click on the Apple logo is a convenient shortcut to open System Information.
There is also the third-party Coconut Battery app that gives you other nice statistics and keeps track of battery health if you open it occasionally.
I have an M1 Air, I got it new and use it heavily. I see "battery health" is "normal" and "max capacity" is 90%, but I don't see a count of charge cycles.