@bug2k22 The Duet3D images are based on the official RPi OS so it's definitely an easier choice. A few differences I can think of:
Different boot screen*
Auto-setup of correct TfrRdy pin in DSF config (needed on RPi 5 only)
Preinstalled packages from unstable package feed
Auto-start of DWC in full-screen mode*
A couple of extra preinstalled packages including required dependencies like AppArmor
Only applies to GUI image