Sorting dates in pivot table

Sure this has been asked, but the "suggestions" I'm finding I either don't understand or do not apply to my particular situation. My data assigns all transactions that occur in a month to the last day of the month (i.e. 1.21.23, 1.25.23, 1.27.23 would all be "stamped" as 1.31.23). The business requirement is for alll the date headers both across and down in the pivot table be in the format "mmm yyyy" (Jan 2023). So I create my date dimension with all dates and the Month category in the appropriate format:

Date            FMT_Date

And of course the following apply:

• I imagine if this was one of the "available" date formats in the PP grid, this whole thing would be a non issue - but it isn't. And unlike in regular Excel, you cannot put a custome format mask on the date
• Of course when I place the FMT_Date as columns or rows on the pivot table, it is in alphabetical order AND all the Apr's are together for each year, Aug's , etc.
• And I understand why my date dimension table cannot sort FMT_Date on Date 

So what is the simplist (pronounced - with the least amount of programming) to achieve the desired result?