I noticed this shortly after buying the car in February 2019, with 95,013 miles on it. While it's not repeatable on demand, it happens often enough that it's a nuisance. Can't relate it to any particular variables like weather, etc. I'll report it at my next service appointment, but don't expect any positive response from Subaru or the dealer, since it's apparently common (and unresolved) on this era of Subarus.

Just a nuisance on this, my first Subaru (bought well used), but a portent of things to come, maybe. Most noticeable when climbing a hill from a stop, it bucks and lunges until it gets up to about 20mph.