Now that the AMD's mobile processors are proving their superiority over the Intel solutions, GPD is more inclined to follow the trend and offer its first AMD-powered handheld laptop. We have the official confirmation that a GPD Win Max successor with Ryzen 7 5800U is already being tested, but actually availability is still sketchy.
https://www.notebookcheck.net/GPD-confirms-it-is-working-on-a-Win-Max-handheld-laptop-powered-by-AMD-s-Ryzen-7-5800U-processor-might-launch-later-this-year.526952.0.html