How to handle Singapore/Penang Hokkien vs. Taiwan Hokkien in conversation?

My family is from Penang, but most of the learning resources I find focus on a more Taiwan-standard Hokkien. When I try to speak with my grandparents, they look at me like I’m from another planet because of my vocabulary choices. Should I force myself to learn standard Taiwan Hokkien first, or just lean into the local variant despite the lack of study materials?