I know what most expats do. They aren't seeing much of Thailand. I've done 9 cities in 4 weeks. Seen maybe 50 outside the bar areas. I'm not in "tourist areas" but Thai areas. I spent a week in Udon. Most expats sit in the bars. I went to all the best restaurants and saw stuff all farangs. Saw 7 or 8 Khon Kaen expats in a Thai style restaurant with music so credit to them for not being western bar drongos. Other areas stuff all farangs.
Most expats are in Bangkok, Chiang Mai or Pattaya are they not? I rarely see them in Thai areas. The best restaurant in Chiang Mai had none.
Gin is correct. Most people do didley squat most of the time outside work.