Samsung — Samsung m31s motherboard issue due to company fault

Hello all,
I purchased a Samsung Galaxy M31s phone in August 2020 just after the official release date of this model, ie 2020 July 30 which says that it is pretty new and we expect descent updates over first few years. After a recent OS update (security patch update), my phone started freezing and auto-restarting every few minutes. It finally switched off with only logo visible which is not even letting the device to get into bootloader. I went to a nearby Samsung service center (Samsung Service Centre bareilly) and they told me that the motherboard needs to be replaced and it would cost around 8k.
There so many people with the exact same complaint in the internet and Consumer Complaints forum regrading their phones (all Samsung M-series phones). The update caused the motherboard to fail. I have multiple samsung phones in my home. I got problems with 2 phones recently. I paid hell lot of money to purchase it and now service center's told mother board needs to be changed will be costing 8k.
Please, have a look at the disaster the updates have caused. And kindly provide a free motherboard replacement. It's a blunder done by samsung and expecting customers to pay 9-13k to get the motherboard replaced. it's not fair.