I'm afraid there's a chance the Nvidia GPU might be defective, there's not much that can be done to fix the problem. There are some things you could try, but there are risks involved and they can be expensive with laptops that are older.
If you really want to use the Nvidia GPU, you could have a trained professional reseat the GPU to see if that fixes the problem. They might also be able to replace the Nvidia GPU should that be needed, but the question is if it's replaceable since it's not sold anymore for years.
Another issue is that you can't use recent drivers, because Nvidia stopped supporting this GPU with driver updates before covid.
The best option if you want to continue using this laptop is to accept that the NVidia GPU might be defective, in my opinion it's not worth the cost to have this fixed. Due to the age of Windows 7, the fact it doesn't receive security updates anymore and the age of your laptop that you may likely get more problems down the road, I'd recommend using this as an opportunity to replace the laptop. Fixing hardware related issues with this laptop may become more expensive than replacing the laptop.
If you really want to use the Nvidia GPU, you could have a trained professional reseat the GPU to see if that fixes the problem. They might also be able to replace the Nvidia GPU should that be needed, but the question is if it's replaceable since it's not sold anymore for years.
Another issue is that you can't use recent drivers, because Nvidia stopped supporting this GPU with driver updates before covid.
The best option if you want to continue using this laptop is to accept that the NVidia GPU might be defective, in my opinion it's not worth the cost to have this fixed. Due to the age of Windows 7, the fact it doesn't receive security updates anymore and the age of your laptop that you may likely get more problems down the road, I'd recommend using this as an opportunity to replace the laptop. Fixing hardware related issues with this laptop may become more expensive than replacing the laptop.