I had a similar result. 85%+ similar to a bunch of random accounts, and my perhaps most distinguishing feature is I don't use the word 'app' or 'company' a lot. The former because I dislike the word, and the latter maybe because I'm self-employed.

I figured it maybe would cluster me with other non-native speakers but it doesn't appear to. Of all the accounts where I could identify a country of origin, all were American.