Based on your earlier comment, I dusted off the Fuji X App that I had on my iPhone — uploaded a fresh version, and figured out backup/restore with the Fuji X App. And, as you say, IT WORKS. I’m sure that I’ll keep several flavors of settings handy as you have done. But the reason that I really wanted to make backup/restore work is because I have, and shoot with, two X-T4s. And it is very handy to have the same settings on both cameras. Thanks to your emails, I have purged Fujifilm X Acquire from all my systems and now climbed in bed with Fuji X App. Many thanks for your help. And if sometime you find yourself resting, have a look at WWW.TOMCARROLLPHOTOGRAPHY.COM
Thanks again
TC