Considering I'm a developer/author/designer/publisher as third party for Paizo. For PF 1, I published the Kaidan setting of Japanese Horror (PFRPG), which is still a great setting especially for PF 1. However, since the release of Starfinder, I've had this longstanding itch for sci-fi and Starfinder is giving me what I need for creating one-shots, rules supplements and setting guides. I haven't looked at PF 2, yet, as I haven't needed to. However, I do have a project I was developing for PF 1, when Starfinder took over, and I put that project on the shelf. But have been thinking about it lately (it's been 6 years since I shelved that project), a Weird West setting, and if I can get back to it, I may try to publish it as both D&D 5e/PF 2.0, and then I'll have to look at those two game systems for the first time...