Is There a Sweet Spot for Life?

It's still an unresolved debate if there is a sweet spot where you could have a planet that either migrates in later in the age of the star, or reconstitutes an atmosphere somehow. And would the star be settled down enough that the planet could hold on to the atmosphere? Maybe once it's tidally locked, most of the atmosphere is away from the star,. Would that be enough to hold on to enough of an atmosphere? I don't know. But clearly, astronomers have not given up on this idea. This is the latest research in that.