I use Jenkins every single day, and have been using it my entire career through three different companies self hosting it.

Please tell me how we somehow have been hobbled despite having simple and clear pipelines setup that autobuild any branch we want and allow one click deploys to our preprod environment and automatically manage versioning and scalably handle load from "Literally zero" to "Everyone in the company wants to rebuild everything now" and goes down less than github.

What are we supposedly missing?

More importantly, what are we missing that tangibly improves results for our consumers?