Followers should not be able to see other athletes on your group ride
Followers should not be able to see other athletes on your group ride. Unless they also follow that athlete or that athlete does not have enhanced privacy on.
The only option I have available now is to manually remove the other athletes from my activity afterwards. But of course they also disappear for me.
Strava has recently focussed on improving the privacy regarding non-followers. But it should not be forgotten that hiding things from followers can be desirable.