Moving to plot level will have ‘changed’ things. But also makes it much easier to comprehend as it’s now always ‘plot column neighbours join together’ rather than plots merging for settlements even if there were 2 gaps inbetween; but only sometimes! Since depended on chunk borders.
The old road hueristic was ‘each chunk has to have 4 plots’ and now is ‘the plot and it’s 8 neighbours around it have to have 9 plots’ which largely works out the same but sometimes is more strict, but again is easier to comprehend as it doesnt rely on chunks which you cant see borders of.
Before, ‘if you were careful with chunks’ you could get away with a 2 wide set of single high plots to make a road that didnt hit the road hueristic, but sometimes had to be 4 plots wide, now its consistent 3 plots wide single height wont hit the hueristic.
At least for PC, the new debug screen for beacons/settlements will help find any parts of a beacon that ‘cut’ a set of plots into two via road pieces which lead to ‘bridges settlements’