Comment by zten

You might want to try dumping your work from Resolve out in ProRes 422 HQ or DNxHR HQ and then encoding to h264/h265 with Compressor (costs $; it's the encoder part of Final Cut as a separate piece of software) on a Mac or Shutter Encoder. Also, I'm making a big assumption that you're using the paid version of Resolve; disregard otherwise. It might not be worth it if your input material is video game capture but if you have something like a camera that records h264 4:2:2 10bit in a log gamma then it can help preserve some quality.