This is a list reccommended “free” software that performs well on multiple platforms (MacOS, Windows and Linux). Your mileage may vary, but each package often suffices for most needs:

• Paint = Krita
• Image Manipulation = Gimp
• Vector Drawing = Inkscape
• Photo Grading and light-table = Darktable, digiKam
• 3D Graphics = Blender
• Office Suite = Libre Office
• Video Editing = OpenShot, Shotcut, Resolve
• Web Browsing = Firefox
• DAW = Waveform, LMMS, Ardour
• Audio Editing = Audacity, Rosegarden