I fly to Palma regularly. Mostly on easyJet.
easyjet say you must wear a mask but also say this is a personal responsibility which they won’t enforce. I wear one ( I am high risk ) but overall mask compliance is I would guess 10%.
Palma in my experience have a 100% requirement to scan either your vaccine cert or the locator form ( my ex wife will not agree to child vaccinations ). However in recent months they do not ask to see the negative test you are certifying on the locator form.
passport control is mostly egates but you have have to be over 18 to use them so kids join the queue. The queue getting in is usually small. The queue getting out is usually large !