461
The end of uBlock Origin in Chrome is now weeks away, not months
(www.techspot.com)
This is a most excellent place for technology news and articles.
IDK that it's much less than 1% of general users, considering it's .4% of the total global population, and even as #1 not everyone uses Chrome on desktop (but also some people have multiple desktops...).
But your point is still valid, if the roughly 1% desktop market share shifts to FF, not a lot is likely to change.