I have had no 'Suggestd quit unexpectedly' alerts since trying this work-around. This took a while on my rural internet Maybe this would take less time if I chose 'Keep a copy' earlier in the operation? I don't know. Meanwhile the computer downloaded/sync'd the iCloud data it needed to store locally.
The Apps were already selected for iCloud syncing - but I audited/unselected a few unused apps.
I then Restarted the computer and signed back into my iCloud account. I got a window asking - Do you want to keep a copy of your iCloud data on this Mac before signing out? I unselected the icon(s) and then the button changed to say 'continue' instead of 'Keep a copy' - I clicked 'continue' - and after a bit of lalala time the window disappeared and I was signed out. Unselected all the app syncing (except I left iCloud Drive and Photos as they were)
Recently (2022) I started getting repeated 'Suggestd quit unexpectedly' alerts and finally found a fix that actually worked.
