So...yeah. Looking at file size, it clearly beats older 264 or even 265. I don't mind if my server is going to have to transcode for most clients, I think the size difference in size might be worth it. But not sure which groups I could focus to look for these AV1 releases, seem they're quite scarce still?
You can set up a command to transcode into AV1 once a download completes. Would that help?
There would be quality loss from transcoding lossy formats to lossy formats. OP would have to prefer the highest quality, and transcode after download.