Non-existent shared VRAM on NVIDIA Linux drivers

Is this even getting addressed? I believe nvidia has said that their GPUs supports spilling memory into system RAM when in need, but indeex “glxinfo -B” reports total VRAM == Dedicated VRAM

Is that an issue with the drivers? I am uncertain, Ratchet & Clank Rift Apart crashes complaining that it has ran out of memory with my 1050 ti, but it runs just fine in windows on low settings.

Is everyone here delusional and the drivers indeed support memory spilling into system RAM? Is it that the game crashes cause the driver, while supporting it, fails to report it to whatever the game is using, resulting in the crash?

Is it the game’s fault and should be reported to them? Or is it the driver’s? If so, can we expect a fix in the proprietary driver? Let alone the one with the open kernel modules? Honestly the build I am describing is fine for budget low settings couch 1080p gaming, but this issue is a major obstacle.