On Windows, you could press ALT to navigate the menu bar: each menu item would have a letter underlined to tell you how to select it, and when you picked a letter the menu would expand and each new item would have an underlined item etc. So you quickly discover and commit to muscle memory that ALT + F + S would select File then Save. This worked for dialog pop-up options as well so you didn't have to click.

You can't do this on Mac? Why? I found this really jarring. I know on Mac you can press CTRL + F2 (add Fn key if you have one) to change the keyboard focus to the menus but it doesn't underline the letters that will work and you have to hit enter to open things so it's clunky.

The command palette is nice for discovery of lesser used commands and when there's lots of them but it's less predictable what keys you need to press to fuzzy search to the command you know is there and it doesn't teach your fingers the shortest key combo to trigger it.