Ds4 is just 6 in yr one and no to everything on that list, though he can be a but negative grumpy at times, he will daddle if grumpy but I can generally chivvy him along and make up a game to cheer him up. But I don't have to do that often.
Ds1, and ds3 were no to all at that age.
Ds2 always been more of a handful and still us at 11, we have seen camhs and add has been suggested. We have various strategies that help and he has got better as he has matured but he can still throw a good strop!
I would think either the child is overttired and having a bad day or if it was regular they weren't happy at school or there were some issues. I think you are doing the right thing with investigating.
're helpful things, visual charts/pictures of routines, the books 1,2,3 magic and also 'your explosive child' and I did a Webster Stratton? Parenting course that was helpful run free by children's centre and they provided childcare!