To be fair. Thay dressing room is toxic.
Vini Jr, Mbappe, Bellingham, Rodrygo.. to name but a few egos.
Its well rumoured that towards the end Ancelotti just let the team do what they wanted and regularly had stars miss a training session or two.
Alonso tried to stop that, plus implement a more pressing system. Which the Real players didn't want.
Am I surprised it ended like this? No.
But to say he failed after half a season when Real are still in the CL and 5 points off the top is hyperbole.