Thanks for the response Stephen. I created the system per the Digital Ocean one click install. Initially, I had 35GB of free space on a 50GB server. I thought that was odd, but couldn’t find anything in these forums about that.
Then, only once, just the other day I rebuilt the system to learn the commands. I see a rebuild is something you should do a time or two a year. Just last night I learned about the command you just provided, but I have not run it.
I suppose the question is, on a default new system. Is 35GB remaining on a 50GB machine to be expected?