Hallo
As the Ubuntu Software Centre is in decline I think it would be useful to point users to synaptic as an alternative. However, a new user would find synaptic somewhat dificult I imagine, so something like a pop-up window with a brief “how-to guide” might be worth considering.
I know some users do not care too much for the Ubuntu Software Centre. I owe it a lot.
Link to some of the programs I found via the Ubuntu Software Centre.
At the begining I spent countless hours going through the different software packages, reading the reviews, sometimes following up on tipps to consider using another program instead (that’s how I found out about “radiotray”). Synaptic has two major drawbacks for a beginer; some of the package names are non-intuitive and there are no reviews to guide a new user in making a choice.
Nonetheless, if you install something via synaptic it almost always works well afterwards. 