I've supported OpenShot financially in the past, but I'm currently leaning towards LosslessCut and Shortcut. Most people want a video editor to splice and concatenate video files without any loss or transcoding. I believe this behavior (lossless) should be default on all of these editors.
You have to make a lot of sacrifices for lossless editing, so it’ll probably always be a specialized app or at least a separate tool within an all-purpose NLE. For instance, you’re limited to compatible input streams and you can only cut on specific intervals, depending on encoder settings etc. I guess an NLE could import clips in a locked mode by default that only supports lossless operations, and you’d have to spec…
That one, I do believe should get more research and implementations. Currently I only know of LosslessCut's "Smart" mode, but I'd like to see other big players of the video editing space improving the state of the art in that direction for simple cuts.