A lot of domestic routes are being constrained by over-zealous pricing. Look at routes like LTN-EDI/GLA/ABZ, pax numbers at or above 2019 levels. A similar story can be seen for BRS domestic routes where yields aren't being squeezed. Yes, there are are a lot of zoom/teams calls taking place but businesses still want to go and meet people face-to-face. There are definitely opportunities for unserved citypairs and routes that are being milked. As for "Zombie Flybe" the reason for the collapse was a lunatic CEO who had been told by "experts" (a couple of contributors on here spring to mind) who told him there was a fortune to be made out of LHR and AMS slots. There wasn't and a profitable domestic network was sacrificed to maintain the remedy slots due incompetence on the aircraft delivery side.