is there a way to filter/search a record by its description?

There is a (officially unsupported) way of doing this; use a combination of if() and fn!concat() for the title attribute of the list view item that will never happen, and the field will be searchable but not displayed. You're able to do this with any number of fields.

The example below will only ever show rf!title as the title for each record, but forces rf!description and rf!employeeName to be used when searching. It's possible to add any number of fields in the second fn!concat(), though no doubt there's some impact on performance if many fields are used.

As I say above, though, this is not officially supported.

a!listViewItem(
title: fn!concat(
                    rf!title,
                    if(
                              false,
                              fn!concat(
                                        rf!description,
                                        rf!employeeName
                              ),
                              ""
                    )
          )
)

Thanks this worked.

thanks. Its working for record fields