I’d say I probably do about half my riding alone, then roughly equally split , the remainder with one or two friends, real good mates who enjoy doing stuff together anyway, then the rest , maybe once a month or so, with those guys and our ‘extended’ group of anything from half a dozen to perhaps ten, sometimes trail centre, but more often than not natural local trails , or further afield .
To be honest I really do love riding alone, but have no issue otherwise, other than the faff time, especially in winter, with shortened riding times anyway and getting cold quickly, which then extends the faff as folk start adding and removing layers. I reckon it can take up to five minutes for eight folk to put back packs and gloves back on !