Google Sheets is competing with Excel.
Proton Sheets is competing with Google Sheets.
So Proton Sheets is competing with Excel.
I used Word as a comparative example to say that parts of the office/docs suite are easy to compete with (there’s only so may things a word processor can do), while others (like Google Sheets or Excel, whichever order you prefer) is incredibly difficult to compete with; a formatting error on import of a Word doc is acceptable. An unsupported formula ruins the entire thing.
Google Sheets is competing with Excel. Proton Sheets is competing with Google Sheets. So Proton Sheets is competing with Excel.
I used Word as a comparative example to say that parts of the office/docs suite are easy to compete with (there’s only so may things a word processor can do), while others (like Google Sheets or Excel, whichever order you prefer) is incredibly difficult to compete with; a formatting error on import of a Word doc is acceptable. An unsupported formula ruins the entire thing.