Does the gauge in fact read over 196 degrees. On my 2014 911 the water temperature gauge doesn't read over 194 degrees even if the oil is in the 220-230 range I suspect Mazda might be the same.
https://rennlist.com/forums/991/1179963-the-194f-annoyance.html
https://rennlist.com/forums/991/1179963-the-194f-annoyance.html