Doom running in software mode and CPU getting hot

I thought I would try and get DOOM running on FreeBSD 15.0-RELEASE so I did pkg install doomlegacy.

A message I saw when installing was:
Code:
=====
Message from sdl-1.2.15_17,2:

--
Your SDL library has been built with libvgl support, which means that you
 can run almost any SDL application straight on your console (VESA 2.0
 compatible videocard is required).

 To do this you have to load the vesa kernel module or enable it in your
 kernel, and set environment variable "SDL_VIDEODRIVER=vgl".
=====

I am using the 'amdgpu' video driver, so can I still get this working so that the games runs with hardware rendering rather than using the CPU to render in software mode?
 
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