I'm not questioning your information I'm sure it is accurate. Getting the information from a Volvo factory specialist, that is as good as it gets. I do question why they would recommend to go 200 hrs or 12 months without changing break-in oil (engine and reverse gear). Its their product line's reputation and warranty so they would not advise doing that if it was not right.
I changed the engine oil/filter, reverse gear oil/ filter at 55 hrs along with other requirements that the owners manual required (2016 manual also D3 not D4). I sampled the 55hr thru Blackstone Labs, the report came back with higher then normal Metal particulate, Aluminum,iron,copper and magnesium. Blackstone recognized that this was break-in oil and said this extra particulate in the oil is normal for a new engine during break-in. I Changed the oil again at 130 hrs( yearly oil change ) the sample still showed higher then normal metal particulate but better then the first sample. The report said "it is entirely possible that the higher then normal metal particulates is due to lingering break-in oil that hasn't washed out yet." I changed the oil again end of season ( 2nd year ) 229 hrs Oil sampling came back good except elevated iron particulate. Report said possible causes, restricted air filter , induction air temperature elevated, lack of induction air. ( I replaced the air filter which was clean and installed a better engine compartment ventilation system) hopefully that will help.
Reverse gear sampling showed higher then normal copper particulate almost 4 times over normal at 55 hr break-in , slightly elevated at 130 hrs and the 229 hr sample came back all normal.
With these results I question how much metal particulate would be in the oil that is lubricating my engine and reverse gear if waited to change the oil at 200hrs or at the once a year interval 130 hrs and how long it would take to get the residual out. I'm old school when it comes to maintenance. Most likely over kill. Volvo has engineers that are a lot smarter then me.