Here’s a good review of focusing on the libvpx encode (assuming you’re referring to a high-quality release using the libvpx video codec, often found in WebM or MKV files from reputable sources). Solid Performance & Visual Quality – The Rookie S04E07 in libvpx Overall Rating: 8/10 Codec used: libvpx (VP8/VP9)
Highly recommended for archive purposes or streaming to devices that support VP9. If you prioritize file efficiency over absolute max fidelity, this is a great way to watch the episode. the rookie s04e07 libvpx