Just to cover the bases, it also appears you have multiple instances of OBS running. Make sure you close all possible running instances by bringing up the task manager and closing obs64.exe and obs-browser-page.exe in the Details tab.
In OBS audio settings, try selecting your desktop audio device specifically, instead of relying on "Default" to auto-select.
You are on a laptop, so there is a possibility that you may have a pre-loaded program that is supposed to "enhance" your audio -- check your taskbar programs and see if there's anything that may be doing this. Specifically, I would be looking for anything that gives surround/spatial/3d/etc ehancement.
In windows settings, go to System -> Sound -> Sound Control Panel, then go to Playback and open the properties for your desktop audio device. On the "Advanced" tab, make sure "Allow applications to take exclusive control of this device" is unchecked. Then on the "Spatial sound" tab, make sure that is set to "off".
If this doesn't fix things, I would try switching your audio sample rate to 48,000hz for both OBS and your microphone.
If that
still doesn't work, it is most likely a driver issue. You may be able to reinstall the default windows driver, or you may need to install
Realtek's generic driver.
