Last Refresh table in Databricks or in power query?

I have this extra table to get the last refresh time. Is it more efficient to have this saved in Power Query or build a dedicated table in our Azure Databricks gold layer? Thanks

let

date = DateTime.Date(DateTimeZone.SwitchZone(DateTimeZone.LocalNow(),-5,0)),

time = DateTime.Time(DateTimeZone.SwitchZone(DateTimeZone.LocalNow(),-5,0)),

//negative five (-5) is based off of CST adjust this on date and time to your timezone.


firstSundayOfNovember = Date.StartOfWeek(#date(Date.Year(date), 11, 7), Day.Sunday),

SecondSundayOfMarch = Date.StartOfWeek(#date(Date.Year(date), 3, 14), Day.Sunday),


isSummerTime = (date = SecondSundayOfMarch and time >= #time(1,0,0))

         or

 (date > SecondSundayOfMarch and date < firstSundayOfNovember) 

 or 

 (date = firstSundayOfNovember and time >= #time(1,0,0)),


timeZone = (Number.From(isSummerTime))*1 - 1, 

//negative one (-1) may need to be adjusted depending on your timezone. 

ltime = 

            DateTime.From(date) 

            + #duration(0,Time.Hour(time),Time.Minute(time),Time.Second(time))  

            + #duration(0, timeZone, 0, 0),

    #"Converted to Table" = #table(1, {{ltime}}),

    #"Duplicated Column" = Table.DuplicateColumn(#"Converted to Table", "Column1", "Column1 - Copy"),

    #"Renamed Columns" = Table.RenameColumns(#"Duplicated Column",{{"Column1", "Time"}, {"Column1 - Copy", "Date"}}),

    #"Changed Type" = Table.TransformColumnTypes(#"Renamed Columns",{{"Time", type time}, {"Date", type date}})

in

    #"Changed Type"