First, please feel free to check out the AI answer
Since the call audio continues while the Windows interface and applications stop responding, this sounds more like a system hang than a normal blue-screen crash. Bugcheck: 0 does not identify the cause by itself, so I would avoid assuming that the graphics driver is responsible.
As the next test, perform a clean boot to temporarily disable non-Microsoft services and startup applications. Use the PC normally afterward and check whether the freezing returns. If it remains stable, re-enable the disabled items gradually until the conflicting software is identified.
You can also press Win + R, enter: perfmon /report
Let the System Diagnostics report complete, then check whether it identifies resource exhaustion, disk delays, or a repeatedly failing process.
If the PC still freezes during a clean boot, restart in Safe Mode and test there. A freeze that also occurs in Safe Mode would make a hardware, storage, firmware, or core Windows issue more likely. If it does not occur, the cause is more likely a third-party service, driver, or startup application.
Also, when the next freeze happens, try Ctrl + Alt + Delete. Please mention whether that screen appears and whether the Caps Lock light still responds, as this helps distinguish a full hardware-level hang from an Explorer or application-level freeze.
I hope this helps, feel free to let me know if you need any further assistance