Same issue here with cli method with my Pixel 9
Bootloader Version...: ripcurrentpro-16.3-13642544
Baseband Version.....: g5400c-250605-251024-B-14326965
Serial Number........:
extracting android-info.txt (0 MB) to RAM...
Checking 'product' OKAY [ 0.000s]
Checking 'version-bootloader' OKAY [ 0.000s]
Checking 'version-baseband' FAILED
Device version-baseband is 'g5400c-250605-251024-B-14326965'.
Update requires 'g5400c-250605-250730-B-13854248'.
fastboot: error: requirements not met!