I think that UNA is absolutely ideal from a layman's point of view, anyone who can install wordpress can also install and use UNA.Problem is when you can't set up the server and its features, learning to manage UNA is then only a matter of time.

Regarding Pro Apps for free,i think it's not good, reduce the price yes, but no free. The money you collect can be used for further development and improvement of UNA. Also think about others who have already paid for Pro Apps.

So that anyone can try the installation, modules and environment, it is better to set up, for example, a 14-day test server for new users, you can delete it at any time.