Does dust cause a problem in the shops if not controlled?
Are you kidding?
Wood sawdust is hazardous for many reasons. It is a known carcinogen. The finest sub-micron particles get deep in your lungs, are the most dangerous to long term health, and are the most difficult to filter. Wood dust is also an allergen sensitizer. Some woodworkers must quit because of allergies, and others must avoid certain woods or cover up completely to avoid serious health problems.
In the past, the dangers were not recognized, and many woodworkers continue working today without thinking about the issues. I always wear a dust mask today, but was pretty sloppy decades ago. Heck, back then, I liked the smell of sawdust! (To be honest, I still do, but I know better.)
Sawdust management is more than one thing:
* Collecting the sawdust and keeping the mess under control. Many woodworking tools can generate a lot of sawdust very quickly. The more sawdust you collect at the source, the less gets into the air. Of course, the act of cleaning up can throw a lot of sawdust in the air.
* Keeping the air safe and clean. Some woodworkers install special air cleaners (basically, fans with filters) that they run while they work.
With no disrespect intended, I recommend that you do more homework about woodworking and sawdust management. The internet is full of useful information.