I've got 3 phones which worked untill they got updated to Android 10. One of them for instance is a OnePlus 6T. Do note that many Custom ROMs already fixed this, so if you are running one of those, you should indeed not need to do this. Also with my Samsung S8 it seems to work on and off, with every update being a surprise if it breaks anything.
Something else to consider is that if you apply that prefix, all Android 10 phones work. Also the ones who happen to not have the problem.