"You just have to be accustomed to it and accepting of the software found in your desired distributions repositories. In Ubuntu’s instance there are nearly 2500 GUI-centered applications and close to twenty-five thousand other packages which include drivers, modules, and numerous command-line utilities. In that mix of GUI apps you will likely find a suitable, equal, and often times superior replacement for whatever Windows or proprietary software you may have been accustomed to prior to your switch to open source computing. Its often as simple as search, check, and install.
"The latest version of Ubuntu has attempted to simplify the process even further and provide an app store/center like enhancement which claims to be better organized and feature filled than their previously used ‘Add/Remove Software’ utility."
