Lots of improvement over the last years. Magic Lantern is amazing.
I remember buying the 6d in 2013, when raw video was sort of just discovered.
Only able to record about 10 seconds of raw video, without audio, and this was mind blowing in 2013

Not long after that audio recording was introduced and some memory hacks, which doubled almost the recording times.
Few years later raw recording in lower bitrates came by, and not long after that...lossless recording, which really changed the game for the SD card Cameras.
Thanks for discovering lossless recording Alex

!!!
SD_speed_hack is another nice discovery for the SD cameras, but not regarded save for your memory card if used wrong. Although I'm using it a lot and didn't experience any problems with it. Only problem is that it is still to slow for 2880x1200

I did contribute a lot to finding the possibilities with crop_rec for the 6d. But I only used the tools Alex provided(basic code for crop_rec is done really well, so I could mess a lot with it, without needing to know how the shutter blanking and power save registers work) and had a lot of help from others on the forum like Dfort to learn how to compile Magic Lantern.
Another great tool for noobs

like me is the ADTG_GUI module, available at the ISO research tools on the modules downloads page:
https://builds.magiclantern.fm/modules.htmlWith this tool you can adjust registers and see what it does to your camera, it's a miracle I still haven't bricked my camera

This ADTG_GUI tool is not for the faint hearted, you see a lot of weird stuff happening to your live view, and the camera often soft bricks...so battery pull is needed.
But it's probably the best way to do new findings.
Still hope that the original liveview can be adjusted to the crop_rec resolutions, would be great to have real-time liveview with crop_rec
