I’m only 5’10 and got a large, felt tiny, hated the drops off road. Did not find the that the tucked position made much difference and with a set of wide risers I have space to comfortably grab the bars between the stem and levers if I am facing a headwind or going quickly.
It now has a 100mm 6deg stem some cheapo flexy carbon bars from planetx and a dropper, its proper fun.
currently trying different rubber got an 2.25 ibex lynk out front and a 2.1 rocket ron on the back, good clearance and not as slow as I was expecting, it has transformed the previously terrifying attempts to slow down or turn on anything off road and downhill, tried those £10 tamwall halos on sale too and they are a good allrounder. fast on pavement and predictable on loose with a surprising amount of grip. the WTB tyres saw me on my ass a few times really fast and without warning on actual gravel.
Only gripe is the tiny amount of crank pedal clearance especially as I am running a pair of thos wide plastic flats.. care required on techy climbs..