To make this caveat somewhat less impactful (at least for URLs), check out the url option. Double-quotes will be "preserved" when using it with an URL.
So that part should probably be removed.
But considering it was there to make "this caveat somewhat less impactful", not sure if there is a better alternative now or if the Double quotes on Windows problem is gone on version 8 and the whole section can be removed.
On the Double-quotes on Windows section https://github.com/sindresorhus/open#double-quotes-on-windows
There is this comment about url option
That links to https://github.com/sindresorhus/open#url But the url option was removed on version 8, so the link is dead
So that part should probably be removed. But considering it was there to make "this caveat somewhat less impactful", not sure if there is a better alternative now or if the Double quotes on Windows problem is gone on version 8 and the whole section can be removed.