spare wheel tyre

I have had to use the space saver wheel today, however when inflated to the recommended pressure the tyre looks oddly out of shape. I only had to travel about a mile (very carefully) but surely this isn’t how it’s meant to be?

Would this Renault Spare wheel be suitable for 2001 Petrol Audi A2? https://www.ebay.co.uk/itm/152997719388 What about this space saving wheel? https://www.ebay.co.uk/itm/282715636779 Or this 6 Spoke wheel (Even though my wheels only have 5 spokes) https://www.ebay.co.uk/itm/222573738073 My tyre...