Same here - suffering from Sensorineural hearing loss since I was a kid. Lots of hope but not seen a ubiquitous or even an experimental solution in sight.
Apologies for being nitpicky about the already fixed back button While viewing a specific drilled-down result, each time the back button is pressed, it seems to navigate to the previous character in the incremental search. In other words, if the search term is 'C#', navigating back seems to highlight 'C' in the result detail page.
When I last did something like this, I reset to the original OS because of only one other thing I encountered - proprietary software like for e.g. Samsung S-Pen would not work. Unless I missed something?