A generic ERP is the right starting point for many organisations. A custom system is worth it when the process itself is the product, and the package is already being bent around it.
An LMS fails when courses, progress, and admin tools are hard to finish. Usable learning software is built around the people who teach, take, and run it.
An MVP is a first version with only the paths that matter. It should be enough to test with real users, and small enough that you have not already over-built.
Automation is useful when a step is stable, named, and repeated. It is a poor substitute for an unclear process, and it should not hide the work from the people who own it.
AI is a fair question for operations software. It is not a substitute for a clear process, trustworthy records, and an interface people can finish work in.