The theory of such a thing is that the suspension in combination with medium tires would give you a better ride with higher efficiency and better handling than balloon tires aired down. For a commuter bike the problem is luggage and fenders. And price.
Currently there’s a subcategory of road bikes and gravel bikes that have various kinds of hinges and bumpers in the frame. Trek Domane, Cannondale Topstone are examples. Usually it’s at the highest level of the frame so it’s quite pricey. This is just an extension of the frame evolution that gave us flat chain stays and wishbone seat stays. There’s at least one gravel bike that’s proper full suspension with a swing arm, Niner RDO.
The idea comes around now and then. Notably in the States there was the Cannondale Bad Boy Jekyll with 700c rims about 20 years ago