I think we won't change the minimum requirement tested for in the cloudron-setup script for now. It seem quite the edge case to have that little storage available, however it is good that we know there is a possible workaround for those cases.
@girish They are unusual I would say, yes. It's a file that is being updated on a daily basis so it has a file history of 30 different versions in NextCloud. They are .db.crypt12 files, which is a database backup of WhatsApp about 120MB in size.