Where do you go for help when you're using all the things?

I keep finding myself trying to figure out problems within a more and more complex software stack and not knowing where to go for help because I don't know which particular component is causing the problem.

Where do you go for help in situations like that?

For example I'm currently trying to configure an environment specific setting in a vue application but my custom .env files are not being picked up. Is it a Vue problem? or Vite? Or Yarn? Or Node? Maybe Docker? Docker-compose? Helm? Kubernetes? Github? The list goes on.