Fill formula down till last row in column

For people with a similar question and find this post (like I did); you can do this even without lastrow if your dataset is formatted as a table.

Range("tablename[columnname]").Formula = "=G3&"",""&L3"

Making it a true one liner. Hope it helps someone!

Alternatively, you may use FillDown

Range("M3") = "=G3&"",""&L3": Range("M3:M" & LastRow).FillDown

It's a one liner actually. No need to use .Autofill

Range("M3:M" & LastRow).Formula = "=G3&"",""&L3"