I've been using HEVC with Voukoder for a while now, but After the updates to the AV1 after finally updating, rendering does not take a long as it used to with the SVT support. For 1440p game recordings i have it set for 2,000 kbit with a max bitrate of 10,000 kbit, ultra fast preset, and main tier. The quality of the videos look really good in my opinion. a 20 minute 1440P video ended up being 340 MB in size. Very good file size to quality compared to h.264 and h.265(HEVC)
I dont see too much information for AV1 out in the wild. I am wondering who else is using the AV1 codec and what settings they are using. I haven't played mych with the constrained variable bitrate, or the constant quantizer yet.