$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Radeon RX 6700/6700XT Driver on Gnu/Linux Distros

GNU/Linux Installing Radeon RX 6700/6700XT Driver Guide

How to Install AMD Radeon RX 6750 XT Graphics Driver on GNU/Linux 64-bit desktops – Step by step Tutorial.

And there are 2 Radeon RX 6700/6700XT Linux Driver available Alternatives of AMDGPU: Proprietary and Open-Source.

The AMDGPU Pro Software includes Support for Accelerated Graphics, MESA Multimedia, Pro OpenGL, Pro Vulkan and Pro OpenCL.

AMDGPU Driver supports all AMD Radeon GPUs based on the Graphics Core Next (GCN), Radeon DNA (RDNA), and Compute DNA (CDNA) architectures.

So for the Radeon Open Source Drivers see: How to Install AMDGPU from Ubuntu PPA.

How to Install Radeon RX 6700/6700XT Driver on GNU/Linux Distros

GNU/Linux Radeon RX 6700/6700XT Graphics Driver Installation Guides