What files would you like to change?

I can see that @4 brought improvements in speed and reliability, that's great. But it also broke a number of common patterns in workflows. Can you provide some guidance about ways to achieve the same outcomes with the new version? This might involved new features in actions/download-artifact.

For example:

• Upload many different files, then download them to my machine for distribution: https://github.com/nedbat/coveragepy/blob/master/.github/workflows/kit.yml
• Produce coverage data files from a matrix of test runs, then upload them to an aggregating step: https://github.com/nedbat/coveragepy/blob/master/.github/workflows/coverage.yml

What are your suggested changes?

I'm looking for help, I don't have solutions yet myself.