IMO, enclosure for laser is usefull and nice to have :
- It will help for ventilation as it will canalised/reduced the volume of air/fumes to extract.
- Also possible to make a filter panel to filter some bad lights; disclamer : Always use good laser goggles.
- You can add a webcam on top and configure it in LightBurn for visual positionning.
- You will already have your enclosure when you will decide to work with a router
If interressed have a look on mine: