Ja, that looks like the older OpenGL version. As if you were on an integrated graphics card. If you have an optimus setup, I think you may need something like bbswitch or nvidia prime for the switching. I'm on an Arch though; not sure how Mint/Kubuntu do it. If you're not sure if you have one of those, you can try this guide: https://www.reddit.com/r/linux_gaming/comments/aoh5be/guide_hybrid_graphics_on_linux_nvidia_optimus/
You may also have problems with other software as well, including Krita or OBS, since they also require OpenGL 3+.
Okay I have updated OpenGL and now when I run the command glxinfo | grep "OpenGL version" this is the output
[email protected]:~$ glxinfo | grep "OpenGL version" OpenGL version string: 2.1 Mesa 20.0.0-devel (git-cc3ef36 2020-01-14 bionic-oibaf-ppa)
I do not see any difference in the graphics and the Kame Editor still has a black screen I have a few Ideas to troubleshoot so I will update you on this matter
Update: After some troubleshooting I realized that if you select a folder the screen turn white (as seen in the image below)
do any of the earlier versions of the Kame Editor support OpenGL 2.1 because if I downgraded to a later version that supported OpenGL 2.1 or lower it might function properly