Freeport is not on a barrier island, but is a map point of reference for many who might not know where Surfside is.
I expect to see barrier island breaching and structural damage, consistent with post storm imagery from Bolivar Peninsula, extending from Surf City, Texas, to the coastline near Lake Charles, Louisiana.
All those islands, (and probably intervening low coastline not protected by barrier islands), with the exception of downtown Galveston and High Island, are similar heigth ASL, similar geological structure, and all were subject to similar surge and wind levels.
The post storm imagery of Bolivar Peninsula represents the most likely current state of most or all of the above referenced coastline. No guarantees, but that is currently the most rational projection, in my opinion.
I know Freeport isn’t a barrier island, we have lived in Brazosport since 1973. Surfside sits right on the gulf. Then Freeport, then Clute, then our town, Lake Jackson, then Angleton, etc. up to Houston.