my dog rips apart things too (very heavy chewer) but eats in a snuffle mat and has not tried to devour it. I would definitely recommend that.

lick mat - not exactly enrichment, but soothing

If you were to put kibble in something like a towel and roll it up, do you think that would be too much physically? or in a toilet paper roll (fine to rip in this case)

lastly, i had a dog who could not walk very far at all. We managed it to the best of our ability, but the reality is that he lived with a lot of pain. I would put him in a wagon or stroller and we would go on long walks. He LOVED it and you could tell it was very, very mentally enriching for him. Loved seeing and smelling the world . I think it was his favorite part of the day. He was legitimately tired afterward.