Book it in. I took mine in to have the creaky suspension issue looked at and they also did a software update that was listed as a recall on the job sheet and it was for the SOS bug.
For reference, they apparently just used some different grease that had been recommended by VW for the suspension issue and it seems to have done the trick.
I have also had no pops or issues from the Infotainment but I did notice that there was no change in the Infotainment version. Still at 1866, which I'm fine with, as I was concerned that new bugs may be introduced, having not had many of the issues I've read about others having. So the fix must have been a specific module software update and not a full firmware update.
The day after collecting the car, I had an oil top-up warning appear. As far as I know there was no oil change or anything similar, so it could be a simple coincidence. I've ordered some of the Shell stuff that Mr Chapple got for his oil change video and will top it up when it arrives.