No, the ProGrade Digital CFexpress Type B Gold 128GB is not compatible with the Sony Alpha 1.
Sony A1 does not accept CFexpress Type B cards. Type B is physically incompatible with the A1's Type A/SD combo slots. Both combo slots take CFexpress Type A or SD UHS-II cards only.
What works instead
See all compatible memory card for the ProGrade Digital CFexpress Type B Gold 128GB →“CFexpress Type B memory cards cannot be used.”
Last verified:
Compatibility inferred from spec rule (citations above are manufacturer-verified)