In folder mode, even if only the first few charaters of the file names are displayed, they seem to still be sorted on the whole file names.
I have tested on a few albums I know well and the tracks are played in the proprer order, even if the part of the name that is displayed on the screen won’t be long enough to include the track number.
With my naming system, all the files corresponding to tracks of the same artist for albums published in the same decade are shown the same. Still, they played in the proper order.
I also put all the files in only one directory. So – even more with my naming system than yours – it’s a bit akward to have to scroll down such a big list to spot the beginning of an album. But at least the list is circular (starts over again when the end is reached).
So while I still insist that it is very far from ideal and am still waiting for a proper fix, it is somewhat usable for me in the meantime.