Yes, I found it useful to export my projects to a portable drive in the past to avoid losing them when unforeseen disasters happen to a computer.  The good ol' back-up, back-up, back-up ethic is not just for computer data.  My advice on that front would be to use another place as well as 'cloud' storage.  You never know when a company will decide to end their storage service (or end up being ransomwared without any backup of their own; I'm looking at you, garmin!).  And then another again just in case the second spot is somehow compromised (and I know people who even say a forth!).