This seems very agency-driven. Almost every tech company has a squad of designers and researchers trying to understand their users.
Secondly your job is to advocate for users needs and solutions that can help them (so long as technology is the desirable fix). Growth, strategy and marketing all sound like skills for stuff other than user centric design. These skills are valuable in their own tracks but a practitioning ux designer shouldn’t need deep knowledge in them unless they’re on a growth team or ecommerce app. If your goal is to collect more billable hours and win RFPs sure... but that’s not design.