I have a MacBook Pro (14-inch, 2021) M1 Max and it only allows automatic or low power modes. I'll show the settings below for both:

Normal Mode: automatic

% pmset -g
System-wide power settings:
Currently in use:
standby 1
Sleep On Power Button 1
hibernatefile /var/vm/sleepimage
powernap 1
disksleep 10
sleep 1 (sleep prevented by powerd, sharingd)
hibernatemode 3
ttyskeepawake 1
displaysleep 3
tcpkeepalive 1
lowpowermode 0

=========================

Low Power Mode:

% pmset -g
System-wide power settings:
Currently in use:
standby 1
Sleep On Power Button 1
hibernatefile /var/vm/sleepimage
powernap 1
disksleep 10
sleep 1 (sleep prevented by powerd, useractivityd, sharingd)
hibernatemode 3
ttyskeepawake 1
displaysleep 3
tcpkeepalive 1
lowpowermode 1