OBS is using your RTX 2060 to capture, not your Intel 630. So don't worry about that as we can see below:
11:26:51.936: Initializing D3D11...
11:26:51.936: Available Video Adapters:
11:26:51.942: Adapter 0: NVIDIA GeForce RTX 2060
11:26:51.942: Dedicated VRAM: 1975517184
11:26:51.942: Shared VRAM: 4241610752
11:26:51.942: output 0: pos={0, 0}, size={1920, 1080}, attached=true
11:26:51.942: Adapter 1: Intel(R) UHD Graphics 630
11:26:51.942: Dedicated VRAM: 134217728
11:26:51.942: Shared VRAM: 4241610752
11:26:51.947: Loading up D3D11 on adapter NVIDIA GeForce RTX 2060 (0)
11:26:51.989: D3D11 loaded successfully, feature level used: b000
11:26:51.989: D3D11 GPU priority setup success
Try keeping your scene to have only one display capture. You got two as shown below.
One may be overlaid on top of the other with a black screen while the other with the real content.
11:26:52.616: Loaded scenes:
11:26:52.616: - scene 'Scene 3':
11:26:52.616: - source: 'Display Capture' (monitor_capture)
11:26:52.616: - source: 'Display Capture 2' (monitor_capture)