computed column filter

I assume by the filter you mean slicers?
in order for the values to be affected by slicer they have to be in a measure not calculated column

here is a good article by Marco Russo explaining the difference between the two
https://www.sqlbi.com/articles/calculated-columns-and-measures-in-dax/

Choosing between calculated columns and measures

Even if they look similar, there is a big difference between calculated columns and measures. The value of a calculated column is computed during data refresh and uses the current row as a context; it does not depend on user interaction in the report. A measure operates on aggregations of data defined by the current context, which depends on the filter applied in the report – such as slicer, rows, and columns selection in a pivot table, or axes and filters applied to a chart.