I'll be ranking the planets of Dune: Part 1 (Arrakis, Caladan, and Giedi Prime) in terms of gravity, from weakest to strongest.
3. Arrakis
The sandworms are evidence that gravity on Arrakis is weaker than gravity on Earth. Something as large as a sandworm could never survive on a planet with gravity as high as Earth's.
https://www.biology.utah.edu/faculty-news/the-science-of-the-sandworms-of-dune/
2. Caladan
Apparently, this is the standard on Caladan for not putting on muscle. Living on a planet with gravity slightly higher than Earth's would likely produce slightly more muscular humans, although the average build would be closer to Timothee than Jason Momoa.
1. Giedi Prime
Giedi Prime has the strongest gravity out of all the planets shown in Villaneuve's Dune films. This is made clear by the Baron's need for suspenders in order to move around. Here on Earth, I've seen guys bigger than him walking around just fine.