I don’t rotate in 2Wd cars irrespective of if the tyres are unidirectional or not. Always have best tread on the rear, again irrespective of FWD or RWD.
Now heading for bunker.
PS on AWD IE Haldex type I do same as 2WD. But in 4WD IE Subaru, Pajero, Disco I did rotate or move front to back and vice versa if unidirectional. But only on Subarau did I have unidirectional anyway.