Yes everything here is up-to-date. I'm using the same debian version as you. I can't test other linux games made with unity because most games are for windows only and also requires a graphic card and I don't have one =\ so I don't know if a game for a weak pc would work here, I don't know any that I could try. After seeing the log probably it's because my opengl it's too old =\
I'll leave some more detailed specs here:
kaira@darkness:~$ cat /etc/debian_version
10.6
kaira@darkness:~$ uname -a
Linux darkness 4.19.0-12-amd64 #1 SMP Debian 4.19.152-1 (2020-10-18) x86_64 GNU/Linux
kaira@darkness:~$ glxinfo | grep version
server glx version string: 1.4
client glx version string: 1.4
GLX version: 1.4
Max core profile version: 0.0
Max compat profile version: 1.4
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 2.0
OpenGL version string: 1.4 Mesa 18.3.6
OpenGL ES profile version string: OpenGL ES 2.0 Mesa 18.3.6
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16
The log:
Mono path[0] = '/home/kaira/Desktop/Terminus Linux/Terminus_Data/Managed'
Mono config path = '/home/kaira/Desktop/Terminus Linux/Terminus_Data/MonoBleedingEdge/etc'
Display 0 'W1943 19"': 1360x768 (primary device).
Unable to load player prefs
Desktop is 1360 x 768 @ 60 Hz
Unable to find a supported OpenGL core profile
Failed to create valid graphics context: please ensure you meet the minimum requirements
E.g. OpenGL core profile 3.2 or later for OpenGL Core renderer
[Vulkan init] extensions: count=2
[Vulkan init] extensions: name=VK_EXT_debug_report, enabled=0
[Vulkan init] extensions: name=VK_EXT_debug_utils, enabled=0
Vulkan detection: 0
No supported renderers found, exiting (Filename: Line: 627)