You say "beta users".
That is so 1980.
The MS terminology is "Office Insider". Get on the terminology train, stop confusing your readers!
PS: changing the name from Office 365 to "Microsoft 365" is stupid. It is just confusing. So, Windows is not part of "Microsoft", well it's not part of the "MIcrosoft 365" bundle ... What about Visio and Project? They are not part of any "Microsoft 365" bundle (although I hear a few business bundles may be getting Visio online ... maybe).
PS Bill Bosler: comments are a very good idea. Submit a feedback to MS. Did you know can add comments to formulas using the N() function. Maybe that will work for Lambda and Let? I haven't tested yet (not an Office insider).
https://exceljet.net/formula/leave-a-comment-in-a-formula https://exceljet.net/excel-functions/excel-n-function
https://exceljet.net/formula/leave-a-comment-in-a-formula
To leave a comment in a formula that returns a numeric result, you can use the N function.
=formula+https://exceljet.net/excel-functions/excel-n-function("comment")
.