Hello bluetrampolines
A good lawyer should never judge their clients and remain professional. However, lawyers are also human only. There are times judgemental thoughts may appear but a good lawyer should not let the client feel that they are judged.
How much behind the scene depends on the work. Lawyers might converse about strategies if it is litigation (going to court) or a commercial contract - how to make the contract more beneficial to our party.
Why don't lawyers tell client their plans? Well there are different reasons why. 1. They are not sure what the plan is yet. 2. Client not knowing could be part of the plan 3. To explain the plan to you might take more time and cost to you.