If it’s something you use so infrequently why not have it on the screen in a toolbar instead, so you still don’t have to remember which key it is, and you don’t

If it’s something you use so infrequently why not have it on the screen in a toolbar instead, so you still don’t have to remember which key it is, and you don’t need to move your gaze away from what you were already looking at. The touchbar has used, but from what I can tell, all those uses are better solved by existing non touchbar techniques already. Toolbars for infrequently user functions you won’t remember the shortcut for (better because they hold more and don’t require you to change the screen you’re looking at, and you can keep your hands on the touchpad/mouse as before). Fn keys (or combo keys) for frequently used shortcuts that you would remember as they ass tactile feedback and are much more conducive to touch typing. The trackpad for actual scrubbing like functions. Where I can see the touchbar being useful are infrequently used global functions, but I believe these are the ones Apple explicitly prevents developers from building (and unsurprisingly the inbuilt global ones from Apple are the most popular feature of the touchbar, such as volume controls and music playback controls).