VP9 is AV1's predecessor and VP8 is VP9's predecessor. Dunno what the “264K 360° Surround sound 3D VR” thing is about, but AV1 is a good general purpose video codec and I recommend using it, with Opus audio.
EDIT: I should add, h264 and h265 are non-free because of software patents, for which there are licensing fees. There are free implementations and there always have been, but the extent to which these implementations can actually freely be used legally is limited by this. Cisco's OpenH264 is an exception, because there is a cap to the licensing fee and Cisco is already paying the max amount. This allows them to freely distribute binaries for their h264 implementation without having to pay additional licensing fees for every user. It's a clever loophole, but there are still limitations, namely that you have to be using Cisco's pre-built binaries. If you want to use the source code, you still need to pay for the licensing fee.
Because patents last twenty years and the initial release of h264 was made in August 2004, the key h264 patents should all expire within the next few years, which will eliminate the problem. h265 however was introduced in 2013 and its patents still have a good decade left in them.