I just updated the super brightness feature to work with macOS Tahoe in 5.606 alpha. It would be great if some of you could check whether it continues to work on your machines. It should support all Apple Silicon based Macbook Pro's with HDR/EDR support
It should now be a generally more stable and easier to use solution.
(Super brightness allows you to make your Macbook display brighter than supported using the standard brightness sliders which can be great for working outdoors)