U2725QE firmware update on Mac not working

I have tried to update my new U2725QE monitor on my Mac (M4 Pro Max), using official firmware update software as well as DDPM.

Firmware update software says that it is not correct monitor for Firmware provided, while DDPM simply fails the update.

Contacted support, but they are looping around "It works on Windows 11" and "You need DDPM and your monitor will work", and to me it seems that representative does not know difference between firmware, driver and supporting software.

Now just left 20 minutes waiting on a chat, and it seems they have disappeared. 

I did power cycle the monitor.

This isn't about monitor not working at all, but about updating to latest firmware.