Graphic Driver Selection

Hi, earlier Nvidia used to work well. But to minimize the battery consumption, I switched to Intel using sudo prime-select intel. Today, in order to switch to Nvidia I executed sudo prime-select nvidia, my laptop instantly froze. I had to force shutdown my laptop using the power button. Then I tried to switch it on, it didn’t boot. So I entered recovery mode and executed sudo prime-select intel again and my laptop booted normally. Why? What’s it happening?

When I open nvidia-settings, the window is asking me to select. But when I select Nvidia, it freezes.

See the attachment.

And which drivers should one use? proprietary or opensource for nvidia drivers?

I use open source through Zorin menu -> System Tools -> Software Updater -> Settings -> Additional Drivers.

I selected opensource driver, but still my system freezes.