Basically the longstanding issue of having "total control". There needs to be a middle ground between having total control and being forced to use it (while for the most part having no limitations but are either not very straightforward or are far too straightforward) and being given the illusion of control (while for the most part not having limitations until you do, then you can't get around them).
The Steam Deck has been the most accessible Linux desktop and it still has been frustrating at times.