Crostini. https://chromeos.dev/en/linux
A “one click” install of Debian (in a VM) that runs alongside your ChomeOS device. It’s a great starter tool for those getting used to Linux and even for the Linux Pro it gives you a terminal, which 99% of the time is all I need.
You can use GUI applications as well so GIMP and other tools are available.
Super easy, barely an inconvenience.
As far as I know. You could probably get fancy moving to dev mode and then install whatever, but I’m plenty happy with Debian.