The Wise CFexpress Type B Mk-II & PRO, SDXC UHS-II V90 memory cards and portable SSD have been verified for FUJIFILM GFX100 II Medium Format Mirrorless Camera:
https://fujifilm-x.com/global/support/compatibility/cameras/list-of-supported-memory-cards/#cfexpress

*The camera photo is property of FUJIFILM Corporation.