OK, resolved! Photos of the drive C 512 ssd  were sent via pm to Dell Cares , and they verifies the ppid on the Western Digital ssd matches with my service tag, so my xps 8950 was shipped with the WD drive. Now if I can just get help on resolving the warranty date on the computer , which shows warranty coverage started 3 months before I bought it from Costco! So far everything running great after I uninstalled Support Assist, which gave me several blue screens (Windows didn't shut down correctly last time) on start up, and 3x a day messages saying I needed to re-start to update cloud services (which I didn't activate and don't use). Probably going to add an m.2Hynix p41 1T drive for data storage to save capacity and endurance time on the C ssd to finish the system. If it lasts as long and as well as my old XPS8700 has, It will be great. Thank you everyone for the assistance on this.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
The service tag on my new XPS 8950 lists drive C as being "SSDR, 512G, G44, 80S3, SMSNG, PM9A1. However, Windows 11 Device Manager reports Drive C as "PC SN810 NVMe WDC 512GB. At present I only have one SSD on this computer, and really only one drive C. So, is the service tag wrong? Is the WDC SN810 a factory allowed substitute? The specs on these drives are a bit different. Are they equivalent or is one a more desirable SSD? The PM9A1 seems to be Samsung, and the SN810 a Western Digital, no? Thanks for any insight.
XPS 8950, different M.2 drive than listed in Service Tag