Plan for the worst, since you do not know how the flooring company that you will be hiring operates. Some have very good dustless system, some not so much and others have none. Some are very professional and others not so much, quality is everywhere, since no one follows standards, You will get what you paid for etc. Do your due diligence in hiring the best contractor. Have patiernce for quality. If, you don't, then just hire the cheapest guy.

I've moved the furniture into one end of the house, finished the floors in the empty part, then moved the furniture to the finished part and done the other side (grand pianos being a particular problem for moving out completely). If you can move everything out to a container in the driveway or into the garage life is easier and the job is much faster.

With quality catalyzed water based finishes sanding and three coats of finish can get done in a week if your contractor is diligent and well staffed. Fumes are minimal.

I've mostly DIY'd floors, but hired a pro last time (getting too old for this stuff!) and they were amazing. Near perfect dust extraction at the machines, they used HEPA vacuums and there wasn't a bit of dust either embedded in the finish or anywhere else in the house-- the house had never been so clean! Finding such a pro isn't easy; talk to people in your town who have had work done recently. If the person who quoted you the job doesn't show up to do (or at least directly oversee) the work, send them packing. I ran into several guys whose business is to quote jobs and them farm them out to whoever they can get to show up. One of them had the good grace to look at the inlaid borders I'd made for the floor, the nice cherry baseboard trim I'd designed and installed and suggested that his guys were really good for flippers but that I should probably hire someone else, my house was "too nice".

The guys I hired keep busy full time in the 3-4 surrounding towns, father (owner) and son showed up to do the work, along with a couple of employees who had both been with them for over 20 years. I had to wait several months for an opening in the schedule. Floors were perfect and there wasn't so much as a nick in any of the woodwork. They cost about 20% more than the cheapest options, but still way less than some. Seemed like a bargain to me.

Get referrals from neighbors and friends. I’ve had two houses that needed full refinishing and was not living in them at the time. For an empty 2,000 square foot house, my highly regarded floor pro needed a week. That included the staircase. At that time, dust settled for a few more days, but I think there is better dust control now. You can probably follow the same idea as @rwiegand and do half and half.

Don’t just hire anyone. Make sure you can talk to a customer or two, or three, and possibly see their floors. Having this done correctly is important since it’s so much interior space you’re dealing with - and money.

We just had new hardwood floors installed. The finishing part took about a week. We moved everything out of the living room, dining room, sun room, kitchen, and two hallways (we also got new kitchen cabinets, hence the kitchen demo). I started boxing up bookcases, the china cabinet, and kitchen stuff weeks in advance. I measured all the furniture, and made a plan of where everything would go - basement, garage, or guest room (we put the mattress against the wall to make more room). I removed the baseboards (and replaced them when the floor was done). The flooring contractor included that cost as an option in the bid, but I'm retired and handy - I was able to do it myself.

We were only out of the house 2 nights during the actual finishing. We went with a UV-cured finish, so we were able to move everything back in (even rugs) immediately.