In that case, learn on…
I’ve 4 machines and up till I added a brand new M1 MacBook Air I had no points syncing information amongst all these machines, going again over a decade. I’ve 200GB of information on iCloud and have a number of dozen apps that retailer their docs there by default. However whereas something created on the M1MBA will add superb to iCloud, something created or edited on the opposite machines will “present” on the M1MBA however is not going to obtain. Sure, there’s a little cloud however no down arrow.
To pressure a sync, I’ve to open Exercise Monitor and “kill the fowl”. That’s, I’ve to cease the fowl course of aka the BIRD daemon. It restarts by itself and the sync happens.
A ache, sure, however simpler than logging out of the consumer account and logging again in.
I hope this helps somebody. It has pushed me loopy for months.