(work in progress)
$ pip3 install vcgencmd
It is a Ubuntu Server 20.04.2 for amr64, with desktop environment Mate. Modified using script from: https://github.com/wimpysworld/desktopify
$ uname -a
Linux ubuntu 5.4.0-1041-raspi #45-Ubuntu SMP PREEMPT Thu Jul 15 01:17:56 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux