Finger foods and textures

Je

Hey mamas. My little guy is 9 months old and struggles with textures. He loves smooth purees/yogurt and cheerios. He will eat puffs and yogurt drops. Anytime he tries to eat blueberries, apples, bananas, etc, he chews and then gags on it. I know that he can eat solids though because he loves cheerios. I'm worried that I'm doing something wrong? He had his 9 month check up yesterday and the doctor said to just keep offering him different foods. Is anyone else dealing with this too?