Hi and welcome to the forum.
So your AMD Radeon 530 was OK on Z16 but not recognised on Z17.1.
AMD is usually well supported by linux kernels, but that can come and go in time.
I do not know if Radeon 530 is old or new.
If old, I am wondering if an older kernel (e.g. same as used in Z16, where it worked) would give you back your AMD graphics.
There is a Tutorial to do that here: [HOW TO] set an older kernel to default boot
EDIT:
"The Radeon 530 is a dedicated entry-level graphics card for laptops that was released in 2017.
Source: https://www.notebookcheck.net/AMD-Radeon-530-GPU-Benchmarks-and-Specs.214534.0.html
Also:
AMD linux drivers resource: https://www.amd.com/en/support/linux-drivers