It looks like you’re referencing a specific for Adobe Photoshop CC 2019 :
Before this version, painting in perfect symmetry required plugins or complex paths. adobe photoshop cc 2019 20.0.1.17836
CC 2019 introduced the . This was a massive shift for designers who work with placeholders. It looks like you’re referencing a specific for
: The traditional Ctrl+Z (or Cmd+Z ) now steps back through multiple history states by default, replacing the old Ctrl+Alt+Z shortcut. replacing the old Ctrl+Alt+Z shortcut.