If you're a data hoarder, keep both – the libvpx copy will likely outlive H.264 in terms of compression efficiency for archival.
ffprobe -v quiet -show_streams The.Bay.S03E05.webm | grep codec_name Expected output: the bay s03e05 libvpx
| Device | S03E05 libvpx Playability | |--------|----------------------------| | PC (VLC/mpv) | Software decode – CPU usage 40-70% | | iPhone (pre-iOS 14) | Unplayable or stutter | | Apple TV 4K | Plays via Infuse (software decode) | | Chromecast with Google TV | Native hardware VP9 – smooth | | Raspberry Pi 3 | Drops frames heavily | If you're a data hoarder, keep both –