Since I did the search under default settings I would assume best match just sees that people that type one way or another tend to click certain listings more than others. The good thing is it looks like all the listings are the the same just not the rankings.
I wouldn’t go changing titles yet either but it just seems bonkers that something that small would change your listings rankings. I would like to see how it works out in the mobile browser and the desktop as well.
First time posting so if this is the wrong thread to post in sorry.
So I just did a quick few test searches regarding the case sensitive keywords and it looks like they changed the order of your best match in the mobile app also number of listings did stay the same.