If you go back to the earliest days of the Mac there have always been third-party apps to improve the functionnality of your sytem. It's what's been expected of users. There used to be a time when third-party Windows style Start Menus and bars were all the rage. I know it's a cultural, not technical, difference, but unless your work restricts what you can install you will be much happier going with the flow. Many window snapping utilities exist and many others who help with multiple monitor setups.

With the great attention to detail of macOS third-party developers, you can be sure those apps will give you a seamless experience.