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Not at all my experience, 673 movies and counting. I encode at around 10 to 13x with my 12900K using svt-av1.

My command:

ffmpeg.exe -i file.mp4 -r 23.976 -vf scale=1280:720 -c:v libsvtav1 -pix_fmt yuv420p10le -crf 30 -preset 10 -g 600 -c:a libopus -b:a 96k -ac 2 -c:s copy -map 0 out.mp4

Try it.

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while the lectures in they were encoding would definitely look fine with these settings, I have to question your baseline for quality if you’re watching full Hollywood movies encoded at CRF 30.

I'm watching these on my second monitor when I play guitar.

Isn’t that the recommended starting point for AV1? What’s an appropriate high quality starting point?

there isn’t an easy answer, as it’s always going to be dependent on the source you’re encoding from. That said, in my experience anything higher than CRF 25 on AV1 is noticeably compressed, even to a layman. I mostly work in 1080 and occasionally 2160, though.

i can’t remember the last project i worked on in native 720 (probably circa 2009?) and even now 720 is only part of my output pipeline if specifically requested by the client.

> -crf 30

That would do it.

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