Lots of issues in that log. That said, the first thing I would do is get rid of SE. Then un-install/re-install OBS. SE is a mess, it's not being maintained, is nothing but errors & most likely the main cause of the consistently high GPU utilization.
03:34:04.436: Game DVR: On > Off
Rendering Lag is GPU overload & running your monitors @ 144 will cause stutter when encoding @ 60FPS. Kill 2 birds with 1 stone.
05:06:44.417: Output 'Replay Buffer': Number of lagged frames due to rendering lag/stalls: 53 (0.0%)
03:34:08.922: output 0:
03:34:08.922: name=ASUS VP249
03:34:08.922: pos={0, 0}
03:34:08.922: size={1920, 1080}
03:34:08.922: attached=true
03:34:08.922: refresh=144 > 120
03:34:08.922: bits_per_color=8
03:34:08.922: space=RGB_FULL_G22_NONE_P709
03:34:08.922: sdr_white_nits=80
03:34:08.922: nit_range=[min=0.500000, max=270.000000, max_full_frame=270.000000]
03:34:08.922: dpi=96 (100%)
03:34:08.922: id=\\?\DISPLAY#AUS24AF#5&30443c7a&0&UID155906#{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}
03:34:08.922: alt_id=\\.\DISPLAY1
03:34:08.922: output 1:
03:34:08.922: name=Sceptre M24
03:34:08.922: pos={-1920, 0}
03:34:08.922: size={1920, 1080}
03:34:08.922: attached=true
03:34:08.922: refresh=144 > 120
03:34:08.922: bits_per_color=8
03:34:08.922: space=RGB_FULL_G22_NONE_P709
03:34:08.922: sdr_white_nits=80
03:34:08.922: nit_range=[min=0.500000, max=270.000000, max_full_frame=270.000000]
03:34:08.922: dpi=96 (100%)
03:34:08.922: id=\\?\DISPLAY#SPT604D#5&30443c7a&0&UID155905#{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}
Application Audio is known to cause crackling & there's a sample-rate mis-match
03:34:14.388: WASAPI: Device '[VIRTUAL_AUDIO_DEVICE_PROCESS_LOOPBACK]' [48000 Hz] initialized (source: Application Audio Capture (BETA))
03:34:14.396: WASAPI: Device 'CABLE Output (VB-Audio Virtual Cable)' [44100 Hz] initialized (source: Audio Input Capture)
This Scene needs to be fixed, only (1) Display/Game/Window capture per
03:34:15.673: - scene 'Scene':
03:34:15.673: - source: 'Browser' (browser_source)
03:34:15.673: - source: 'Display Capture' (monitor_capture)
03:34:15.673: - source: 'DESKTOP' (monitor_capture)
03:34:15.673: - source: 'Apex' (game_capture)
03:34:15.673: - source: 'The Finals' (game_capture)
03:34:15.673: - source: 'ALERTS' (browser_source)
03:34:15.673: - source: 'Logitech C930e' (dshow_input)
03:34:15.673: - source: 'Face Cam Border' (image_source)
03:34:15.673: - source: 'Input Overlay' (input-overlay)
03:34:15.673: - source: 'Audio Input Capture' (wasapi_input_capture)
03:34:15.673: - monitoring: monitor and output
03:34:15.673: - source: 'Application Audio Capture (BETA)' (wasapi_process_output_capture)
More errors, EOI errors are generally caused by a bad file AFAIK.
04:47:07.468: fatal: No JPEG data found in image
04:47:07.468: Logitech C930e: Error decoding video
04:47:07.629: warning: mjpeg_decode_dc: bad vlc: 0:0 (00000256F9F861C8)
04:47:07.630: error: error dc
04:47:07.630: error: error y=51 x=8
04:47:07.758: error: overread 8
04:47:07.758: warning: EOI missing, emulating
04:47:07.821: error: overread 8
04:47:07.821: warning: EOI missing, emulating
04:47:07.885: error: overread 8
04:47:07.886: warning: EOI missing, emulating
04:47:07.966: error: overread 8
04:47:07.966: warning: EOI missing, emulating
04:47:08.062: error: overread 8
04:47:08.062: warning: EOI missing, emulating
04:47:08.126: error: overread 7
04:47:08.126: warning: EOI missing, emulating
04:47:09.230: error: overread 4
04:47:09.230: warning: EOI missing, emulating
If you're still having trouble after addressing the above issues, post a new log.
