I see a lot of people treat the dock like the Windows taskbar. They have it filled with as many apps as they can fit in it and leave it on-screen. I used to use the dock like that when I first started using macOS. Now it lives off the left edge of the screen and spends most of the time hidden. I can open any app I need with Spotlight and Mission Control, CMD+Tab, and moving between virtual desktops lets me move around my currently open apps.