Resolve is actually one of the tools which has allowed me to think about daily-driving Linux. And while it's not FOSS it still feels much more open with the support for OFX plugins. There is also Natron which is FOSS and pretty competent as a compositor. And then blender. I'm learning CG in hopes of branching out as a generalist and blender is a prime example of FOSS being competitive with closed-source, industry-standard software.
Also since ML has become a part of my working process (speech recognition mostly at this point, but also had some projects with speech generation, audio clean-up, rotoscoping and other stuff) it sometimes feels like a part of my process is already easier in Linux. I'm no programmer, so setting up all the things for ML work might be challenging and let's just say on Windows it doesn't feel that intuitive. Always a step missing, a dependency which is outdated or incorrect etc. Working in Linux feels more streamlined and straightforward even though I know powershell better than terminal.
Fiio might sound a bit better, but IMO not worth the price difference. I'd recommend Moondrop or CCA if you liked KZ. Moondrop Chu sound pretty neutral and blow anything at this price point out of the water basically, and CCA CA16 are warm with less clarity, but still nice sound overall.