2021 Q5 Spare 'wheel'

Juts bought a 2021 Q5 with no spare wheel as expected - theres a pump and sealant kit there instead.

The photo shows what the wheel space looks like - its certainly not big enough to take an inflated spare wheel (tried one off my A5) so I am guessing its space for a collapsible wheel.

Any guidance on where I can get one other than Audi themselves ?

Thanks