The previous model has it in the back, you can’t even feel it properly because it’s not recessed.
On the other hand the last time I turned off my M1 mini was when we moved. It’s 100% silent and takes less power than a lightbulb when it sleeps, so why would I bother powering it off.
A Mac is not a Windows PC
The last time I turned off my Mac Mini was when we moved. The time before that was when my UPS battery died and I had to swap a new one in.
I do reboot it though, but why would I bother turning it off?