Strangely enough, this does seem to exist for Google Sheets: https://webapps.stackexchange.com/questions/73080/is-there-a-quick-way-to-see-when-a-cell-in-a-goo

Strangely enough, this does seem to exist for Google Sheets: https://webapps.stackexchange.com/questions/73080/is-there-a-quick-way-to-see-when-a-cell-in-a-google-sheets-was-last-edited/131938#131938 https://webapps.stackexchange.com/questions/73080/is-there-a...