For me... LibreOffice, Thunderbird, Firefox. Chrome and derivatives are spyware. Mom was about to pay for office 365. Got her to try LibreOffice and Thunderbird "for a while", 2 years later she's completely happy. For audio editing, etc, Audacity does what I want. And it somehow is able to sensibly present the obnoxious tangle that is win7/10 and ALSA. sound.