If not done very carefully, that's just sprawl and bad in its own way. What we need IMO is not to move to the country so much, but back to smaller towns and cities. Some centralization of infrastructure - schools, hospitals, police and fire departments, roads and sewers etc. to connect them - still makes sense economically and ecologically. Somewhere between 50-100K or so new scaling problems always seem to appear - traffic, crime, the waste and corruption that comes with a larger bureaucracy, and so on. Big cities have historically had some advantages to outweigh those costs, but in the world of the last year or so I think more people are starting to reconsider whether that's still true.

After the city of Detroit had lost most of its population, there was a real problem with the cost of providing infrastructure and services to a single home in each multi-block area. There were proposals to concentrate those things into multiple "villages" with the space in between (other than roads) reverting to nature. Unfortunately they never got to try it because too many of those isolated-home owners refused to move. I'm not saying who was right or wrong, but it prevented the experiment from happening and I think we might all regret that some day.