You are more than welcome to find alternative lodging (AirBnB, etc) if you wish. However, transportation to and from Wedding activities will only be provided from the Quality Inn. So if you do plan to stay elsewhere, please make sure you have your own travel means.
Unfortunately, there is not. You will either need to rent a car at BDL or coordinate with another guest for a ride. We recommend trying your best to coordinate flight arrival and departure times with other guests you already know so you could ride to and from the airport together.
We are keeping a keen eye on the ebb and flow of COIVD and will post updates closer to the wedding.