An interesting observation. As you guys all know, AMD made last-minute alteration towards the Radeon RX 5600 XT BIOS files in the week of the graphics card release. All tests and reviews had to be redone to match the new (better) specs. however, it seems that if you purchase a card at this time in retail, all cards still have that 'old' bios.
Now, you can simply grab the BIOS file and update it yourself really (we wrote an article about it here and point to the proper BIOS versions). The reality is that in China everything is on hold due to Corona, and likely the new batches with updated BIOS files have not even reached to stores yet if even shipping at all.
Our colleagues from ComputerBase have been asking around a bit at manufacturers and that basically revealed that pretty much no card in Europe is shipping with the bios update. Again, read up on our article to squeeze that extra bit of perf out of the card (if applicable to your card of course).