Fallout 4 may have weak writing, and janky in overall, but there is a driving force that lure you explore more and play more. Plus it has a house building simulator, that was the hidden gem for me.
Outer Worlds is decent, the writing was good, I don't mind the cartoony morality of "corporation bad, workers good", it's consistent throughout, it's not a dark serious world. But OW is definitely overhyped. The gameplay is pretty much flat. OP was right when he says Edgewater is pretty much what OW is, everything else is just repitition. The loot and exploration is the weakest part of all, unique set pieces are mostly insignificant, and after getting all science weapons, everything else is just bits and ammos. At least I'm happy whenever I got glue in FO4.
I cruised through the endgame once I reached Byzantium, and have no desire to replay anymore.
OW has potential, but none of them really flies.