Heading to Fuerteventura in 2 weeks with Jet2 and, like all Spanish destinations, will be asked if i have the required vaccination proof (got the APP) to show on landing, if required. Seems it's only Turkey now that requires a PLF to be completed.
With a full Summer season round the corner, it looks like most of the popular destinations have relented on the full proof/PLF requirements in favour of getting the Euros spent.