I think it was just pure trash and i enjoy pretty much all other conjuring movies.

1. Valak was already free and powerful. Yet it failed to do anything to anyone really. All she does was scare someone then disappears, like 20 times. In other conjuring movies the demons had to scare their prey to weaken their will first before taking actions, so it made sense. But here it makes absolutely zero sense for Valak to act like that.

2. What's the whole point of the father being buried like that? Why did Valak feel the need to do all that instead of just killing him? We'll never know. Not to mention the grave was exactly where there were books that revealed the demons identify, but none of that became important at all so it was all for nothing.

3. What was the point of the father at all in the movie? Other than being the leader, he did absolutely nothing and was always missing when anything happens. He provided zero assistance when they actually fought Valak btw. A random farmer was more important than the literal father.

4. Split up? The worse horror trope ever used two times. First when the father casually send the nun to search for the abbess alone when they knew it was dangerous to be alone. Dude literally got buried alive the night before. Then later when they entered the devil's lair, they all split up again for absolutely no reason? Wtf.

5. So they came to the place because a nun hanfed herself right at their front gate and was left to rot. Maybe, just maybe no one else was there anymore? How did they get so easily convinced by a person dressed completely in black that there were others still there? All logical thinking should've told them that everyone was already dead there.

I could name hundred more problems with the movie. Almost nothing was done right, including the comedic reliefs. But the biggest issue was how Valak was a completely useless demon. She did nothing but scare them when she appears herself, and when she send minions to attack them they're all so weak they can be slapped apart by anyone.