I've only watched bits and pieces of Glastonbury.
Alanis Morissette, enjoyed her set. Glass Beams were good (although I assume there must have been backing tracks of some what, which I don't like much).
Charlie xcx, abysmal. The presenter that introduced her on the beeb could barely control his pubescent excitement. And then... it was like watching a parody film clip of the future of live music. If this is what is being hailed as good new music, artists should be rightly worried by AI.