Ну так и запускай platform, а не sdk.
[📦 org.freedesktop.Platform Divinity Original Sin Enhanced Edition]$ ./start.sh
Running Divinity: Original Sin - Enhanced Edition
Language detected: Russian
sendto: Network is unreachable
Thread "EoCApp" (2542228416)
received signal 11
Call stack:
(0) /usr/lib/x86_64-linux-gnu/libpthread.so.0 : +0x13ae0 [0x7fa397ee8ae0]
(1) ./libOGLBinding.so : api::OpenGLRenderer::ApplyConstants()+0x65 [0x7fa398869845]
(2) ./libRenderFramework.so : rf::Renderer::Apply(bool)+0x57 [0x7fa39850f437]
(3) ./EoCApp : ig::IggyBinding::Swap(rf::Renderer*)+0xfc [0xed032c]
(4) ./libGameEngine.so : BaseApp::EndDrawGUI(rf::Renderer*)+0x9b [0x7fa398669fab]
(5) ./libGameEngine.so : BaseApp::MakeFrame()+0x3a4 [0x7fa39866a4d4]
(6) ./libGameEngine.so : BaseApp::OnIdle()+0xe0 [0x7fa398668cb0]
(7) ./EoCApp : main+0x170 [0x6d5180]
(8) /usr/lib/x86_64-linux-gnu/libc.so.6 : __libc_start_main+0xf3 [0x7fa397d30173]
(9) ./EoCApp : _start+0x29 [0x6d4ef9]
./runner.sh: строка 3: 21 Ошибка сегментирования (стек памяти сброшен на диск) LD_LIBRARY_PATH="." ./EoCApp
[📦 org.freedesktop.Platform Divinity Original Sin Enhanced Edition]$
не помогло.