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There are a lot of teething issues with Penpot at the moment and I found it slower to work in than Figma. I've been keeping an eye on the project and I provide feedback to the team, and I hope it continues to improve. But right now, I wouldn't recommend it for use in production unless you're willing to make some time to log the bugs and problems you encounter along the way.
did a first attempt: here a (almost) pixel perfect myfeed page: design.penpot.app/#/view/a90... I've created components out of all the main widgets / sections - it was fun, it's true, it is slower than figma but already quite usable imo