You can use VAAPI or NVENC for hardware encoding, I believe there are presets for that in the render dialog nowadays. I think that is or was broken in the AppImage though.
Using the GPU for actually processing heavy effects (like color correction, chroma keying, transformations etc) is currently not possible and the GPU processing option in the settings is broken. And many of these effects are single threaded on the CPU.
I've never had good luck with distro packages of Kdenlive, on any distro. Always crashing and glitching. The Flatpak has always been much more stable for me, and the AppImage is even more solid.
I don't use Wine so I'm really not sure if this would be prevented
It is not prevented. In fact I saw a video where someone removed the Z:\ drive for wine (the path that gives windows apps access to the whole Linux rootfs) and then ran Wannacry, and it was somehow still able to encrypt all writable folders on the system.
That wouldn't remove the Wine prefix, i. e. the virtual C:\ drive where the virus most likely lives.
Uninstalling Wine wouldn't do shit since it only removes files that your user (and thus wine) can't even write to, and if a virus manages to get around that you have bigger problems.
Same. I don't care if it "doesn't follow the UNIX philosophy" or whatever, it gets the job done, is IMHO easy to work with and many guides assume that you have it.
That, and while it was kinda nice in the beginning with a bunch of Linux / Tech / Science creators and a friendly community, it quickly became dominated by bigotry and conspiracy theories.
You can use VAAPI or NVENC for hardware encoding, I believe there are presets for that in the render dialog nowadays. I think that is or was broken in the AppImage though. Using the GPU for actually processing heavy effects (like color correction, chroma keying, transformations etc) is currently not possible and the GPU processing option in the settings is broken. And many of these effects are single threaded on the CPU.