Indeed I just added a bunch of pictures to my dropbox recently and did hit this limit - I know have 110000 files in my dropbox.
I followed your instructions but set these values to 200000 instead of 100000 as advised. Would it lead to any issue? Is there any upper bound to this value? Why isn't it shared across machines? Is there a way to harmonize this number on all the devices where my account is setup?
In anyway, the files are still labelled 'unwatched'. Do I need to reboot my machine?
How do you get refocussed while working from home? Do you find any of these options keep you from getting distracted?