The whole greatsword scabbard discourse gets me because, like, we know the answer to this one. We've got primary sources talking about it. The answer to "how do you carry a weapon that's more than a yard or so long" is:
- If you don't think you'll need it on short notice and you're lucky enough to have access to a wagon or other means of transport, you don't carry it at all – you stick it in the wagon.
- If you do think you'll need it on short notice or you don't have a wagon, you just carry it in your hands everywhere you go and constantly complain about how dumb and awkward that is, unless you're a professional mercenary and/or independently wealthy, in which case you hire a guy to follow you around carrying it in his hands everywhere you go and he complains about how dumb and awkward that is (though probably not while you're listening).
My next D&D fighter is gonna be a greatsword specialist who has a squire who's always carrying around his big fuckoff sword and complaining about how dumb and awkward it is. Whether or not said squire is going to get fed up with that treatment and stab me in the back with my own sword out of frustration will be up to the DM.
its funny because like a similar sword in china, the Miaodao also has like specific ways of drawing it in short notice despite it being too long to do a regular draw. My favorite is the partner draw