From an unverified source, PF789XXX or later, which is from Fremont, should be on HW4. Austin and Berlin are in similar shoes. Every MY after a certain VIN should be on HW4. Shanghai will ramp up HW4 manufacturing later, which means MYs shipped from Shanghai to Canada might still have HW3 even at a later point of the year.
The HW4 deployment is controlled by 3 things, 1) minor retooling, completed; 2) component supply (HW4 computing unit and new camera), in large scale supply now; 3) using up HW3 component inventory and moving some HW3 components to Model 3 or inventory for repair, I believe it's almost there.
My best guess is they haven't deployed the HD radar in MY yet. For MY's manufacturing scale, they would need to order in large volumes ahead of time, and it is hard to keep a secret. If you really want HD radar, you can wait for YouTubers such as Munro to disassemble the front bumper of HW4 MY and check it out. If there is no HD radar in this update, the most probable timeline for deploying HD radar is the next big revision for MY in 2024 (it might end up in M3 Highlands in 2023), or they have canceled the HD radar because someone might see it as a divergence from Pure Vision (even though my personal view is FMCW radar is also vision just not in the visible spectrum).