Great to hear!

I would guess the codec limitation might come from licensing requirements, as BMD would need to pay for h264/h265 licenses for Linux, and that can't really be sustainable for a free product. MacOS and Windows already come with licensed system codecs.

My project had ProRes source media, so there was no codec issue and everything worked very smoothly. I exported ProRes and used ffmpeg to transcode to whatever I needed.

I don't think I would have bothered trying to run Resolve on Linux were it not for finding that davincibox script. It was incredibly straightforward to install, and now I just start it by clicking on an icon like a regular application.

Have fun!