What happened to Search

I recently moved from Mint 18.3 (LO 5.1.6.2) to Mint 20 (LO 6.4.6.2).

After the move a Python script that worked fine in 5.1 no longer works correctly in 6.4. I found that in 5.1 if I did File-->Open a dialog opens that has a Search option up in the top left corner. In 6.1 the dialog opened with File-->Open no longer has a Search option.

Is there a way to get the Search option back?

Thanks, Jim