Thank you for providing a log.
1. In Windows, we recommend that "Game Mode" be enabled. Game Mode can be enabled via the Windows "Settings" app, under Gaming > Game Mode.
2. The Hardware-accelerated GPU scheduling ("HAGS") feature in Windows is currently known to cause performance and capture issues with OBS, games and overlay tools. We recommend disabling it via
these instructions as a troubleshooting step. Be sure to restart after disabling it.
3. Multiple Game Capture sources are usually not needed, and can sometimes interfere with each other (scenes Stream, HLL-Script2 and HLL-Script). You can use the same Game Capture for all your games. If you change games often, try out the hotkey mode, which lets you press a key to select your active game. If you play games in fullscreen, use 'Capture any fullscreen application' mode.
I would also recommend lowering the resolution on your Elgato Facecam 4K from 3840x2160 to 2560x1440 or lower.
If still having issues, please provide a new log as your log contains no streaming session. Results of this log analysis are limited. Please post a link to a clean log file. To make a clean log file, please follow these steps:
1) Restart OBS.
2) Start your stream for at least 30 seconds. Make sure you replicate any issues as best you can, which means having any games/apps open and captured, etc.
3) Stop your stream.
4) Select Help > Log Files > Upload Current Log File. Send that link here.