You're running OBS on your Intel GPU. That's required for display capture, but prevents game capture from working if the game you're trying to capture is running on your Nvidia GPU.
00:16:23.018: Available Video Adapters:
00:16:23.036: Adapter 0: Intel(R) HD Graphics 620
00:16:23.036: Dedicated VRAM: 134217728
00:16:23.036: Shared VRAM: 2078394368
00:16:23.036: output 0: pos={0, 0}, size={1920, 1080}, attached=true
00:16:23.036: Adapter 1: NVIDIA GeForce 940MX
00:16:23.036: Dedicated VRAM: 2107703296
00:16:23.036: Shared VRAM: 2078394368
00:16:23.047: Loading up D3D11 on adapter Intel(R) HD Graphics 620 (0)
00:16:23.070: D3D11 loaded successfully, feature level used: b000
00:16:25.581: Switched to scene 'desktop'
00:16:25.582: ------------------------------------------------
00:16:25.582: Loaded scenes:
00:16:25.582: - scene 'desktop':
00:16:25.582: - source: 'Game Capture' (game_capture)
00:16:25.583: ------------------------------------------------