Creating new work that wasn’t in the roadmap (excluding tech debt and other necessities to get roadmap work done) is a problem.
The right way to grow is to learn how to work with the company to get important work into the roadmap.
I’ve worked with some peers who had good ideas and good intentions, but they’d unintentionally try to blow up the roadmap and reset planning by prioritizing their work over the things we needed to get done.
Working with the business to get things prioritized is a necessary skill. A lot of engineers just want to work on whatever they want to work on most, but that’s a problem in the context of an organization trying to coordinate.