A few months ago I bought a Cotic Soul frame (26er), and swapped the parts over from my Cove Handjob XC (26er). The Cove only has clearance for 2.1" tyres, which are slowly getting harder to source. Riding the two bikes, I can't tell the difference between them.
I'm finding that tyres are becoming scarce. No Schwalbe Mondial tyres other than 2" for 26" touring bikes. Looking for wider xc tyres for my rebuilt mountain bike, the best choice seems to be 2.4" Nobby Nics, not available with a softer compound.
It seems that tyre manufacturers are focused on the Dirt Jump / Downhill / newer Expedition bike market and catering less for 26" road use / gravel / hardpack xc