Video Compression Techniques

All video is compressed in a lossy manner.

Better encoding will help:http://en.wikipedia.org/wiki/High_Efficiency_Video_Coding

Has this been extended to video (beyond compressing each frame separately)?

Surely you'd prefer to encode video much faster than real time.

Youtube compression algorithm also produces lots of artifacts that were never filmed by the video producers

Does this actually make a better picture? Won’t your stream still be super compressed by meet/zoom/etc?

Wouldn't this limit video post-processing (e.g. color correction, etc.) ?

right but we're not talking about compressing a video stream but compressing individually compressed pictures, big difference

I hope the video codec can cope with this, or else this is going to eat a lot of bandwidth for nothing.

I assume it's also because it's ridiculously compressible compared to more normal video of similar resolution?