Google "how to install home assistant" which leads to:
>https://www.home-assistant.io/installation/
>If you are unsure of what to choose, follow the Raspberry Pi guide to install Home Assistant Operating System.
This leads to:
>https://www.home-assistant.io/installation/raspberrypi
This has a nice visual guide that requires you to know how to buy a raspberry pi, how to plug in a raspberry p, how to plug in an sd card (twice), and how to navigate to a url.
For someone who doesn't have a Linux background, "just put it on a Raspberry Pi" is kind of like saying "You write a distributed map reduce function in Erlang". Ie: it's easy if they know it, but if they don't then that "just" is doing a lot of work there.
Pre-installed is almost certainly the way to go for such a person.
It works out of the box, is very easy to source (hell some brick & mortar stores sell them), has very good Linux support due to its popularity, and makes up a large part of the install base meaning HA support for it is unlikely to get deprecated.
I was with you until this point. A Pi hasn't been easy to source for almost 4 years now.