There are a ton of features built-in and a healthy community of plugin developers to help you really accelerate your experience.
If you're using StreamElements for your alerts and overlays already, it's a no-brainer.
OBS studio is specifically designed to make streaming easier and convenient for streamers.
Hide Messages After — set a timer for how long messages should appear for.
InfoWriter With InfoWriter you can use a shortcut which you can define in advance to save a timestamp in a previously defined text file during a recording.
But even if you're not, it's free to use and will let you have a Facebook Gaming it supports Twitch and YouTube, too chat window inside OBS Studio.