Trying this again since Mastodon was surprisingly helpful with my last Mac IT issue. Did a full (less apps) restore from Backblaze (I know better now). Everything seems ok, except when I download a zip & double click from Safari, Archive Utility gives the error “Could not find a writable folder for the contents of _.zip.” But I can open the zip in Downloads from the Finder and it decompresses. I have rw permission for Downloads, so the problem is elsewhere… but where?