The later versions of Frontpage have improvde quite alot - and provide much better functionality and compatibility than the early versions. However, Frontpage has never really been the choice of professionals, but remained the home users favorite tool. It's not free, so if you're looking for a free alternative, you could try BlueGriffon or Google Web Designer.
The most popular Mac alternative is Adobe Dreamweaver. Microsoft Office - FrontPage is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality.