To be honest, I can't remember ever seeing a book set in my country that was written by a foreigner. But then again, I can only remember a handful of books set in my country that was written by natives as well so I guess it's not that surprising.
If I saw one and there were inaccuracies though, I think I wouldn't mind too much if it was smaller things. Like, yeah, it's easy to find out the general history of a country or the current political situation, the average weather of a certain month or the geography of specific places ... any major information really. But even though we do have the internet with lots of information available, it is very easy to get the small stuff wrong simply because you often don't realize how they might differ in another country.
My favorite example of this is the local traffic in the capitals. If you wrote a contemporary novel set in one, you'd likely check how people got around, right? And then there might even be a scene set in a train or subway station or something like that. Sounds easy, right? You just need the right station your character will depart from and where they go and maybe the specific name of how people call the subway in that country for immersion's sake. Then, you just have to have your character walk into the station, take out their phone or get their ticket, validating it at the turnstiles and go to the right platform. They'll wait for the subway to arrive, those security doors will slide to the side, everyone pours out and then the character will go in and sit down.
Sounds like a pretty universal experience, right? You couldn't get anything wrong there, right?
Well, you knew from the beginning that it wasn't so you probably looked out for what might be wrong with that. In fact, we don't have security glass doors at the subway (because who needs to prevent suicide, right?). Actually, if it's one of the old subways, not even their doors would open automatically. Oh, and those turnstiles I mentioned? Saw those on a vacation one year for the first time in my life and was pretty shocked because why the fuck don't we have them? They're such a smart invention. Pretty sure dodging the fares would be reduced by at least 50% if we had them.
So, no universal experience after all. But, honestly, most people would not google this kind of thing because they won't even think of how this might or might not be different from where they live. If you only ever see subway stations with turnstiles in your life, you're not going to consider there might be others out there (be honest, that's one of the last things you'd ponder).
In fact, even if you know it might be different because you've seen lots of stations in different countries, it's often difficult to find out what exactly the situation at a certain station is like in another country. You can google it but you'll still need a photo or video of that specific station (because no, not all stations are the same even in one country) and after looking through hours of material you sometimes might still not have a really satisfying answer.
And no, I'm not joking. I've been looking through material from train stations or public places to figure out whether they have turnstiles and things like that. It's not a very rewarding experience, I can tell you that. So, honestly, I don't fault authors for not paying attention to every single, little detail. As long as they get the major stuff right, I'm good. Details are nice but I'm not going to burn any books because they aren't 100% true.