This company started off making bike wheels circa 2013 - https://www.bikeradar.com/news/article/loopwheels-spokeless-... - I know because I featured them on my own cycling blog too.
For comparison, a lightweight Zipp wheelset comes in a just over 1Kg. A mid range lightweight set will be in the 1.4Kg range.
There are other ways to make a road bike handle bumps and road buzz, e.g. specifically constructed carbon seat post, or flexible seat stays.
A good race to watch for these kind of things is the Paris Roubaix, some of the bikes had rubber inserts to the seat stays a few years ago, but now have enough damping just from carbon layup of that section.
As well, tires are already integral suspension and often enough for bike applications.