pvesh get /cluster/nextid
pct create 100 \
local:vztmpl/ubuntu-16.04-standard_16.04-1_amd64.tar.gz \
--cores 2 --cpuunits 1024 \
See the following links for further updates to Github Desktop for Ubuntu. These are official instructions. (also mentioned by fetwar on Nov 3, 2023)
For the sake of "maintaining the tradition" here is the updated version.