IKEA does provide manual wheelchairs, but they are hardly an accommodation. The manual wheelchairs have no shopping basket or cart attached.

Can u get a wheelchair at IKEA?

Accessible store

To suppport your visit we offer a number of manual wheelchairs, accessible parking spaces and wide aisles in store.

Does IKEA have wheelchairs or scooters?

They do offer manual wheelchairs, offer plenty of accessible parking, have accessible restrooms. While they don't offer a reason why, IKEA does specifically state on their website that they do not offer motorized wheelchairs/scooters.