Currently, I am using the following preamble on overleaf
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{booktabs}
\usepackage{outlines}
\usepackage{dirtytalk}
\usepackage{latexsym}
\usepackage{tabularx}
\usepackage[hidelinks,colorlinks=true,linkcolor=blue,citecolor=blue]{hyperref}
\usepackage{hyperref}
\usepackage{amsmath}
\usepackage{booktabs,caption}
\usepackage{longtable}
\usepackage{appendix}
\usepackage[para,online,flushleft]{threeparttable}
\usepackage[affil-it]{authblk}
\usepackage[usenames,dvipsnames]{xcolor}
\usepackage[a4paper]{geometry}
\renewcommand{\baselinestretch}{1.5}
\usepackage{url}
\renewcommand{\baselinestretch}{1.5}
\usepackage[backend=biber,style=bwl-FU,sorting=none]{biblatex}
\addbibresource{bibliography.bib}
\begin{document}
\title{Title}
\author{ABC}
\date{\today}
\maketitle
\section{Model}
In this context, healthcare utilization has two components that are important in justifying the estimation methods selected \cite{gerdtham1997equity}.
\printbibliography
\appendix
\setcounter{table}{0}
\end{document}
And the end result is in the image with the citation where only the year of publication is highlighted.

What I want out of the citation is the following:
Is there a way to edit the preamble to make my citations appear as shown in the second image? Thanks!

\usepackage[a4paper, total={6in, 8in}]{geometry}You can have A4 paper size or a 6in by 8in paper size but both at same time? – David Carlisle Nov 03 '22 at 12:18! Package biblatex Error: Incompatible package 'natbib'.use biblatex/biber or natbib/bibtex. You can not use natbib and biblatex together – David Carlisle Nov 03 '22 at 12:20! Package biblatex Error: '\bibliographystyle' invalid for 'biblatex'.You need to use biblatex commands if using biblatex. Don't even look at pdf output after an error, it is just a possble debugging tool, not a usable document – David Carlisle Nov 03 '22 at 12:51