> I can't just read every document the company has on the topic in vain hopes for the answer.

If your documentation doesn't have a search feature, that's the first thing you need to fix.

If you're just bad at searching, well that's a very valuable and learnable skill.

> like setting up my dev environment

> the documentation which had been written both didn't include it (it was customer-facing

The user docs and the dev docs should be different corpses, searchable separately. What you describe sounds very disorganized.