You have a pipeline that builds multiple apps in parallel and the logs of every build drops into the same terminal window or you run multiple apps with a single command and one app has too many log lines that it clutters the terminal window.
Install lnav command. It's website is here.
brew install lnav
Run the command and pipe its output:
my-command | lnav
Type :filter-out and enter your regexp to remove the logs of the specific app you're not interested in.
:filter-out graphql-server
Type :filter-in and enter a regexp that matches only the log lines you are interested in.
:filter-in main-app