I have never experienced controller drift on the PS5.I highly doubt controller drift in the Dualsense is a big issue. This is the first I have heard of it, and most controller types have had this happen to them in some capacity but then you send the bloody thing in for a repair. Only Nintendo seems to have got into hot water because of this and that was before they finally admitted it was a thing and started repairing it without being dongs about it. So what if it is a hassle to get repairs, it's still low in the PS5 problems count - Weird and non-user friendly AI, external HDD issues, internal SSD being barely enough for a couple of games, extra SSD slot unusable until God knows when, the console itself being almost completely unavailable for months, the list goes on. I'm calling this as barely an issue, just another USA lawsuit about something because it's kind of their thing.
edit: I will probably have controller drift out of the box since I wrote this, lol. But I won't have to worry about that for at least a year at this rate.
After reading more about what it is, I realised that it happens all the time on the Switch.
Whenever I play Mario Kart, I notice that the cart will drive to the left or right during the race - Easy enough to compensate but it is pretty annoying.
Also happens in a few other games, where the characters will just randomly start running in a direction you didn't push.