Yeah there are ways to run partial tests on modified code only. But they interact poorly with GH required checks. https://github.com/orgs/community/discussions/44490 goes into a lot more detail on similar problems people are having with GH actions - though our problem is with external CICD tools that report back to GH. Though it does look like they have updated the docs that are linked to in that discussion so maybe something has recently changed with GH actions - but I bet it still exists for external tooling.
Yeah there are ways to run partial tests on modified code only. But they interact poorly with GH required checks. https://github.com/orgs/community/discussions/44490 goes into a lot more detail on similar problems people are having with GH actions - though our problem is with external CICD tools that report back to GH. Though it does look like they have updated the docs that are linked to in that discussion so maybe something has recently changed with GH actions - but I bet it still exists for external tooling.