This version finally introduced Ctrl + Z (Cmd + Z) as a multi-step undo by default, moving away from the clunky Ctrl + Alt + Z of previous decades.

Ensure your scratch disk is set to an SSD. Even though CC 2019 is older, it still relies heavily on temporary storage during high-res edits.

Designers rejoiced when Photoshop finally decided that holding "Shift" to maintain proportions should be the default behavior.

Often, developers or users prefix folders or configuration scripts with "zzz" to force them to the bottom of an alphabetical list. This ensures that core system files are loaded first, or that "patch" files are easily accessible at the end of a directory.