How do you create memorable poster for top tier conferences ( ICML/ICLR/NEURips ect…) [D]

A user presenting at a top-tier conference (ICML/ICLR/NeurIPS) for the first time is struggling with poster design, finding their attempts basic and encountering issues with sizing and printing costs. They are seeking tips on design, software recommendations (PowerPoint vs. Canvas), and general advice to create a memorable poster for a theory-oriented paper.