I have 2x gerforce 7800 cards, series 7 cards. The cards use 304.137 driver. My understanding from Libreelec 8.0 was the the driver 304.137 was not included or that the cards earlier then series 7 were not included. I cant recall how it was diced up. I think it had to do with hardware decoding which I was ok losing. According to the kodi info here: Supported hardware - Official Kodi Wiki
Nvidia GeForce 6-Series or newer is needed for software decoding and I'm fine with that but I think libreelec cut off the drivers all together with no option to put them back in. I understand series 7 cards do not have VDPAU but I think they have VA-API support.
I rarely play video higher then 720p and that along with 1080p content plays fine with software decoding.
Anyway has anything changed?