Last time I checked Japanese magazines and sites use mainly m/s but some do also give FPS readings. Also in Ukraine m/s is also used,at least with the guys I play with so It might be the same for Poland and Russia
bloody yanks but then doubt if we will ever use just the metric system. To this day car tyres are in mm widths but fiited to 17 inch wheels - one of many strange examples of both in use
From a STEM viewpoint, metric is the best way for measurement- but we all grew up seeing MPH on the speedometer and miles on road signs, so we won't understand the magnitude KM/H and KM have.