Maybe try finger foods instead like a cheese omelette or banana fingers? I went straight onto mashed and finger foods at 7 months. My daughter wouldn't feed herself, so I had to encourage her to chomp while I held things. Also, they have silicone fruit feeders on amazon. It's kind of like a dummy. My girl loved frozen puree in them and banana x
Just let them have at it with their hands and embrace the mess.
My baby is the same. Only bf. But still plays finger food a bit eats sometimes
How do they feel about eating with their hands? Or cups? Sometimes things don't look the way we expect them to. My 11 month old can hold a spoon, but will just clear the tray and throw all the food on the floor with the spoon.