This feature is nice and useful, but it should be launched in Excel for Desktop also!!!
My company has 365 subscription which enables colleagues can co-authoring documents on the Web. However one feature is missing in the Excel for Web is "protect" and "Unprotect" the workbook and the worksheet.
Therefore I have another subscription to use the Excel for M365, which I can do the protect unprotect while other colleagues changing the document in Excel for Web at the same time.
The "Show Changes" features is great for me to track who did what, but which is only available in Excel for Web. That makes me have to switch using Excel for Web and Excel for 365 from time to time when I need to do different operation. That's so confusing and troublesome. I definitely think the "Show changes" should extend to Excel for M365.
P.S. The files are in SharePoint.
Hope this helps you understand what issue i am going through, thanks.