You need a picture of the MCU to determine what version it is. The 1MB Ardupilot-compatible version is STM32F745VGH6
The 512kb version that is not Ardupilot compatible is STM32F745VEH6
Here is a picture showing the MCU you want:
I have also been in contact with Flywoo about this. Please reach out to them and tell them you’re interested in Ardupilot-compatible FCs. Hopefully if they see there is enough demand they will release new Ardupilot compatible FCs as chips become available.
More discussion here: