👉🏻 Your system IS detecting both GPUs correctly
👉🏻 BUT the game is still not consistently using the NVIDIA GPU

And more importantly…

⚠️ The behavior you described:

• Works once after reinstall
• Breaks again after reboot
• Random freezes / not responding

👉🏻 This is NOT normal GPU switching anymore

💡 What this actually points to:

This is most likely a Windows / driver-level instability issue, specifically:

🔴 Possible causes:

• Broken hybrid GPU switching (Optimus bug)
• Corrupted graphics driver state after reboot
• Windows 11 25H2 instability / bug
• Conflict between:
  • Intel GPU driver
  • NVIDIA driver

Thank you for all the details and screenshots.
This helps a lot.

At this point, since you have:

• Reinstalled the game multiple times
• Installed all required runtimes
• Updated drivers
• Even formatted your system

This is no longer a normal setup issue.

⚠️ Most likely cause:

Your system is not consistently using the correct GPU (RTX 4050), and this behavior after reboot suggests a driver or Windows-level issue, not the game itself.

🔧 What you should try next:

1. Clean reinstall GPU drivers (VERY important)

Use DDU (Display Driver Uninstaller):

• Remove BOTH:
  • NVIDIA driver
  • Intel GPU driver

Then reinstall:

• Intel GPU driver (from Intel website)
• NVIDIA driver (latest from NVIDIA)

2. Force GPU again AFTER reinstall

Redo:

• Windows Graphics Settings → High Performance
• NVIDIA Control Panel → High-performance GPU

3. Disable Hybrid GPU (if possible)

If your laptop supports it:

• BIOS → disable hybrid / enable dGPU only

4. Try older NVIDIA driver

Sometimes newest drivers break Unity games:

• Try a slightly older stable version

💡 Important:

Since the web version works, your save is fine.
This confirms the issue is local system-related, not a game bug.

If the issue still persists after this, it may be a deeper system conflict, and testing on another PC would help confirm it.