We'll be posting up step by step installation and use guides for a few popular distros soon. We sent pre-release hardware out to developers and maintainers at a few distros and have been working with them on this. In the meantime, we also have a Linux sub-forum in our community where we expect folks will post their experiences with more obscure distros: https://community.frame.work/c/diy-edition/linux/91
The Debian wiki has a section for hardware-specific install guides, that would be a good place to put one for installing Debian on the Framework Laptop:
Very humbly from a full time linux user of 16 years- Id recommend you avoid their crowd- they are entitled and toxic. (as perhaps urself have noticed in this threas)