When frogs eat a mob, the mob is drawn towards the frog. However, when a frog eats a player, the player experiences knockback and is pushed away. The expected behavior would be for the player to be pulled towards the frog, just like how mobs are affected. To verify this, the attached datapack enables frogs to eat players as well. Additionally, the knockback is influenced by the

minecraft:generic.attack_knockback

attribute, as mentioned in MC-269226.