I saw the recommended version of unity for PowerQuest is version 2020. UnityHub does not list it by default because it is no longer supported by unity.
I went to the web archive at https://unity.com/releases/editor/whats-new/2020.3.48#notes and was able to download and install it, however unity recommends using a newer LTS version.
It appears Unity 6 will be released on October 17 as LTS which means very soon you will be three major LTS versions behind.
You provide an awesome tool and I guess adventure games don't need the newer features but, it would be nice to be able to use an officially supported version of Unity that is also supported by PowerQuest. I did use it with unity 2022 by removing the visual scripting package and it works. Not sure about Unity 6 but, I image some people may want to use it just to remove the unity splash screen.
I use the Unity editor on Linux and newer versions tend to work better as unity improved the Linux editor support over time, so it would be nice if newer versions of Unity were supported out of the box without having to delete packages etc.
Anyway, just some thoughts. Thanks for all your hard work and a great product.
I noticed you licensed PowerQuest under the MIT license and wondering if you will ever put the code on github, so others can contribute code to the project if they make changes.