Absolutely. Unlike a fixed stand, a monitor arm allows you to easily adjust the height, tilt, and swivel of your monitor. This means you can bring your monitor forward, closer towards you, or adjust the height to position your display at eye level, reducing the need to hunch or crane your neck to see it. This is crucial for maintaining a neutral spine and neck posture, which can help prevent pain and discomfort.
In general, monitor arms and mounts can allow you to work in a more ergonomic way that's less physically taxing, and have been proven to increase productivity too. Not to mention, this is great for gaming too.