Tyres do not like sitting in the same position for too long, because the weight of the car on the tyre can cause a flat spot. So, if you have space and it is safe to do so, you can also push your car forwards or backwards occasionally, so the weight is not on the same spot.
Here are the tips from MAXXIS TYRES on how to increase shelf life of tyres during the Lockdown period:
Normally, we do not want to over-inflate our tyres because that reduces grip. However, doing so reduces the risk of flat spots, just do not go over the recommended limit.
If over-inflation is not possible, try keeping your 2-Wheeler vehicle on main stand, so tyres do not touch the ground to minimize flat spot. And for 4-Wheeler vehicles, we could push the vehicle forward/backwards once a week by 5m-10m to avoid flat spot.
Park your vehicle in covered area, so tyres do not come in direct contact with sunlight or UV rays.
You can use your new-found free time to give your tyres a clean and dressing to protect from road grime or UV light that might eat away at the rubber. While you are down there, you can give them a quick check for damage and tread life, too.