[thelittleone]

I think it still becomes about the data. If using a sheet as an app particularly with sharepoint, data integrity and merging multiple users often becomes a problem.

I run one for a financial services firm and often get "excel couldnt merge changes, want to save a copy or discard". We tested this out, 2 users make editing different sheets on a single excel workbook hosted on sharepoint and excel can't figure out how to merge. If someone is on VPN and connection drops this also often occurs.

[DonHopkins]

This is why for all its faults and limitations, Google Sheets is astronomically better than Excel for collaboration. There is one single source of truth, will full change history and undo-redo of the entire spreadsheet or individual elements, plus comments and chat.