You are running an old version of OBS Studio (30.0.2). Please update to version 30.2.3 by going to Help -> Check for updates in OBS or by downloading the latest installer from the downloads page and running it.

Browser hardware acceleration is currently disabled. Enabling acceleration is highly recommended due to the improvements to performance and significantly lower CPU usage for browser sources. This can be enabled in Settings -> Advanced.

At least one of your audio devices has a sample rate that doesn't match the rest. This can result in audio drift over time or sound distortion. Check your audio devices in Windows settings (both Playback and Recording) and ensure the Default Format (under Advanced) is consistent. 48000 Hz is recommended.
OBS Sample Rate: 48000 Hz
5 - LG ULTRAGEAR (AMD High Definition Audio Device): 48000 Hz
Wave Link MicrophoneFX (Elgato Wave:XLR): 96000 Hz
Digital Audio Interface (Game Capture HD60 S+): 48000 Hz

Having the YUV Color range set to "Full" will cause playback issues in certain browsers and on various video platforms. Shadows, highlights and color will look off. In OBS, go to "Settings -> Advanced" and set "YUV Color Range" back to "Limited".

Framerates other than 30fps or 60fps may lead to playback issues like stuttering or screen tearing. Stick to either of these for better compatibility with video players. You can change your OBS frame rate in Settings -> Video.