Win 10 Home is definitely sufficient for Paratext. Likewise, Zoom and Google Sheets will work fine.
However, as you mentioned, Win 10 Home doesn’t include the native Windows Remote Desktop tool. There are many third-party tools you could use for remote support (some free, some paid for). But the native Windows tool is very convenient if you need to keep several users’ machines updated and you don’t want to worry whether all of the computers have the right software installed for remote support.