Facebook app “listening in on you” is largely BS. http://www.snopes.com/computer/facebook/facebooklisten.asp
Not to mention it almost certainly doesn’t work on Windows as tends to lag well behind on features.
As for the Windows app. Desktop or Phone? I’d assume desktop as we all know no one uses Windows Phone… except me 😉
Phone app though, there are two of them. One is made my Microsoft and is roughly useable and does the job but lacks newer features like reactions (like anyone would care). The other is made by Facebook and seems to be a horrible conversion from iOS or something using a porting library and is unusable. Slow, buggy, crashes all the time. Useless. Most apps that aren’t native tend to be like this sadly.
Desktop though, and Facebook have a reasonably nice UWP app. It even has live video support (web site won’t give you that). There are the odd few things you can’t easily do via any app that the web site will do though. The desktop app is more usable for tablets.
Adding, if you are forced to use Facebook that is. Family and bike buddies does still tie me to it a bit.