> In this open-source release, support for GeForce and Workstation GPUs is alpha quality. GeForce and Workstation users can use this driver on Turing and NVIDIA Ampere architecture GPUs to run Linux desktops and use features such as multiple displays, G-SYNC, and NVIDIA RTX ray tracing in Vulkan and NVIDIA OptiX. Users can opt in using the kernel module parameter NVreg_EnableUnsupportedGpus as highlighted in the documentation. More robust and fully featured GeForce and Workstation support will follow in subsequent releases and the NVIDIA Open Kernel Modules will eventually supplant the closed-source driver. Customers with Turing and Ampere GPUs can choose which modules to install. Pre-Turing customers will continue to run the closed source modules.

Translating & simplifying the language here: sounds like GTX 10xx GPU users (Pascal architecture, e.g. 1070/1080) will stick with closed source for now, but RTX 20xx GPU users (Turing architecture, e.g. 2080) and RTX 30xx GPU users (Ampere architecture, e.g. 3080) will have the option to opt-in to the open source kernel module. Stable open source support for GTX 10xx GPU users may come later.