Tipster @TheGolox recently claimed that Samsung is working on Exynos chips for desktop. If true, this would mean that we might soon see another entrant in the ARM on PC space, alongside the Snapdragon 8cx and Apple M1.
https://www.notebookcheck.net/Samsung-could-soon-bring-its-Exynos-chips-to-desktop-claims-tipster-but-how-might-it-compare-to-the-Apple-M1.515546.0.html
Supposedly, AMD will license RDNA2 GPUs for Exynos in products that would not compete with current AMD processors. That was specific part of the agreement. I think is unlikely that Samsung would use Radeon graphics for a PC/Laptop Exynos, only mobile phones could not overlap with AMD products.
Not even the "rumored" switch alternative, as AMD supplies SOCs to consoles.