I agree with you on everything - progress is super slow but it looks like there is some glacial fading going on, and a slight increase in noise tolerance - I am at 4 months.So yours behaves exactly like mine.
A way to stop this reaction is to turn on music on the MacBook so my ears don't get fed the fan noise anymore (as the only thing)... very strange.
M1 chipset without fans! Can't wait.
For the time being I bought Bluetooth trackpad and keyboard so I can put the MacBook far away and work on an external screen.
I'm hoping this reactivity will subside after some time (I m already 7 months in) just like my hyperacusis more or less did (it's still there but less bad as it used to be).
Very sloooooooooooow process... that's the thing we are not used to, we are used to the body healing much faster (cuts and bruises).
I ordered some 20 foot HDMI and USB cables to separate my desk from the actual PC chassis, so hoping it becomes a non-issue.
Hope your recovery continues to go well!