All of the GAIST ones I’ve seen today have wakes and smoke. I dont have any other shipping add-ons. I know GAIST works fully at 10% Ships and ferries traffic. There was some discussion last year that they (Asobo) may do something as bgl based traffic files (the sort used by shipping and non live aircraft) were speculated to be causing some problems, but I’ve had no issues with the 10%, (but very much looking forward to the live shipping coming soon from GAIST)
I have the in sim live aircraft traffic switched off as i use FSLTL for FlightRadar24 based live traffic.