In your OBS Studio software, click Start Streaming, then Start Recording.
This way, you won't miss anything and can cut out any irrelevant content recorded in post-production.
How can I change where my recorded video is saved?
In Settings, select the Output tab.
In the Recording section, click Browse, then click Recording path.
Edit the recording settings to fit your needs.
Click Ok.
WARNING!
To broadcast and record a video simultaneously without hassle, you need a high-performance computer.