Their is a lot players still playing fh5 from what i seen, having a game on gamepass is going to boost the numbers to, i have not played it in year, i was bored of the map, horizon has always lacked in map campared to things like the crew and nfs,
Forza motorsport will not have same playercount as horizon, the fact is more people are more intrested in open world racing games, i am not one of them, i prefer track racers, the problem with many open world racing games, is that you are stuck with the same map for years, and pg has not done anything that great With expansions in my opinion with fh5, it really lacks cities, the good thing about many track racers, is that with time we get new tracks to race on, but it has been extreamly slow in gt7 through lately