Not quite clear.
Substituted like this {row:product_customOrderproduct_zaezd5|date_format:dmY}
but instead of a variable it outputs
01/18/2021<0031Mon, 18 Jan 2021 00:00:00 +02002021112 003121MondayEurope/Kiev="f2021131-000017Europe/Kiev: 13.3333px;">
That is, at first the date is correct, but then it adds all this
https://prnt.sc/xfmber