Recently added support for Linux to VLC for Unity, with full hardware decoding.
It uses OpenGL rendering through GLX and EGL, with DMA-BUF texture sharing to pass video frames efficiently to Unity’s renderer.
Only x86_64 is supported at this time. In the future, I will add ARM64 support as well as Vulkan.
Thank you very much.
Don't forget to build 'correct' ELF64 binaries for broad elf(glibc)/linux distro support (-static-libgcc -static-libstdc++, and tight glibc ABI version control with binutils VERSION scripts).
At least those build options should be default.