Since Firmware 7.20 it does. But still count as Wifi5 device.
It is not Wifi6 certified, but compliant.

In the changelog, FW 7.20/Wireless section:

  • NEW 160-MHz channel bandwidth is now always active in the 5-GHz band, providing for very high transmission rates with compatible wireless devices

Later (FW 7.25) is also a 160 MHz fix mentioned.