Consider purchasing a lifetime license for Simply Fortran, which you can buy from the Microsoft Store or from the Simply Fortran website. I am learning gfortran after having learned Fortran using IBM punch cards in college years ago. Simply Fortran includes a complete development environment and it has been enjoyable to use. According to Wikipedia, "Simply Fortran is an Integrated Development Environment (IDE) for GNU Fortran (which currently implements FORTRAN 77, Fortran 90, Fortran 95, Fortran 2003 and Fortran 2008).[1] The project is maintained by the company Approximatrix, LLC.". I am not related to Approximatrix, LLC and do not receive payment or benefits from that company.