I have limited eyesight - good enough to work on a bright magnified computer screen. When I bought a new Macbook Pro I couldn't read the Touchbar and of course there's no tactile feedback. It's even worse that the keys can change with context. Due to my eyesight I also often tweak the screen brightness for best readability with the up/down function keys. The slider doesn't work well for incremental adjustments especially when you can't see it clearly.

I returned the Macbook within a week and had to buy a lower model with real function keys.

I tried configuring fixed locations for the most important keys but could not work without the tactile feedback of being centered on a given key. I guess there's some sort of voiceover but it would be annoying and slow. I didn't need voiceover before so why would I want to use it now to accommodate Apples latest gimmick?

Actually I wonder if it would work to add tactile feedback by 3D printing a thin overlay that adds frames around keys configured for fixed location. Or maybe someone could offer a product that is a Touchbar overlay made of clingy silicone?

Edit: Something else I wanted to add: I've tried switching to Windows (several times) but I can't work without Apple's Ctrl + two-finger up/down full screen magnification. Window's magnifier is a poor substitute because it's not full screen. The magnifier can be made the size of the screen but then it's clunky to move the focus of magnifier, and update is jittery. If anyone from Microsoft is reading this, please look at Apple's screen zoom and give your magnifier a mode like that - a full screen infinitely variable zoom that continually centers the focus on the mouse pointer.