Here is an official post from framework confirming it works: "For those wondering, the 7840U DOES support 128GB of RAM. CT2K64G56C46S5" <a href="https://www.reddit.com/r/framework/comments/1iuc5ze/for_those_wondering_the_7840u_does_support_128gb/" rel="nofollow">https://www.reddit.com/r/framework/comments/1iuc5ze/for_thos...</a>
OP here. I have Black Magic Davinci Resolve 19 running on Linux with Wayland (confirmed with Gnome, Hyprland and Niri). The complication was that I am running on an old AMD GPU (fiji) the AMD R9 Fury X. I have used the open source AMD driver (amdgpu), radeonsi, and OpenCL via Mesa (Rusticl). I succeeded running Davinci on Wayland on latest 6.13 Kernel. I posted all my findings to the NixOS wiki and the archwiki.