It's quite simple.
@Garf &
@Sakashiro
The paid version contains legs and multiplayer.
The demo version is there to give an idea of how well Odyssey performs on your pc, and also as an ad for the paid version.
The problem (for myself and others) is the 4.0 version performs badly on most VR pcs even after the year of attempted fixes, yet the other version (3.8) is no longer supported.
I can just about play 4.0 on my rig but its not enjoyable. 3.8 plays fantastic but is starting to show signs of deviation from what was and is fixed in 4.0 vrs 3.8.
Hopefully they will fix 4.0s performance, antialias, shadows, and darkness, soon™ especially where VR is concerned.
Because a Ryzen7 3700x, 32g sys ram, RTX 3060 12g, with an m.2 game drive, system is over spec for what they list for 4.0.
Its wierd though because :-
Elite Dangerous is sold as VR supporting.
Elite Dangerous 3.8 isnt supported by Fdev anymore.
Elite Dangerous 4.0 odyssey doesnt list as VR supporting.
Elite Dangerous 4.0 Horizons, I dont know if thats listed as being supported by VR or not as its not sold.
So if you buy Elite Dangerous now for VR your only VR supporting option is 3.8 but 3.8 isnt supported by Frontier now .... ?!?!?!?