LosslessCut is great, but I've had issues with the final export like timing being off, having cut sequence etc. I think it is very particular about encoding/container.

Shotcut is my default video editor, if anyone's trying it on Linux please use their AppImage as it solved most of my headaches when I was using Flatpak version.

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birksherty a day ago | parent [-]

If it's lossless, it may change the cut position to enable lossless. If you want cut at an exact place, then all apps need to re-encode which will never be lossless.

For your particular requirement, you can't get lossless quality all the time by any software.

	▲	tredre3 19 hours ago \| parent [-]
		LosslessCut gives you the option to cut at the nearest keyframe, or to re-encode the small portion from the chosen timestamp to the next key frame (at most a few seconds). Sounds lossless enough to me.