We run some fairly big and verbose test suites on github actions (.e.g: https://github.com/kumahq/kuma/actions/runs/8245083767/job/22550558820).

We could use ::group:: to group the stdout output for example which would make things much easier to read see for docs: https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#grouping-log-lines

That would be an example:

This would make the output a lot easier to read.

From a quick look at the code it should likely be somewhere there:

It could either be a command line flag: --github-output or detect it using en env var like: GITHUB_ACTIONS=true.