Thanks for playing.
Kinda. The grid map uses colliders, but not the player. I was trying out something different where I'd avoid Unity's physics system and not use a RigidBody for the player. I had recently finished Code Monkey's very excellent Youtube course and he used Physics.CapsuleCast() to determine wall collision. I thought I'd try using the Physics2D.CircleCast() and it works, but not super well when approaching corners... The gifts use the same technique.
I might enhance this game after the jam and change the player to use the RigidBody component, but leave the gifts as is. Not sure when too many RigidBody's may cause a problem, but I do hear they have some overhead.
Thanks for the advice though!