When it comes to support for PayPal, the hosted version of Sharetribe Go did support this, indeed. The code is available in the Community Edition of Sharetribe Go, but PayPal no longer delivers new approvals for the use of this product, so you won’t be able to configure it in the CE edition.
As you may have noticed, Sharetribe Go is no longer maintained and our focus is fully on the new Sharetribe. If PayPal, or another third party payment gateway is key for your marketplace business idea, this is something that you can build thanks to customization with code by extending the new Sharetribe. We’ve shared some details on this at https://www.sharetribe.com/docs/how-to/how-to-integrate-3rd-party-payment-gateway/.
Again, note that the new Sharetribe, our newest marketplace builder, is a completely new and separate product from Go.
Hopefully, this helps!