I remember, 10 to twenty years ago, when GIS was still a huge part of my job. QGIS then went from being the "cheap opensource contender" to being my main tool... How much better it was than the previous ones...
Not to belittle this or anything (it does look good and show promise), it feels like they somehow generate several consistent (but discrete) views of a given world, then feed all that to the good old pose estimation + gaussian splatting workflow. Whenever you leave the generated area (which isn't exactly huge on the few I tested) you get tell-tale signs of GS.
This, but with something oddly french about it, at least in the way it sounds.
As a native french speaker, no other language gives me that "why don't I understand what they say... oh, right, that's not my language!" feeling. Something with frequencies used, I suppose, but it always puzzles me.
Does that mean all of your appliances, which should supposedly each run on a separate line, now are all plugged on a big single-line powerstrip? Sure, this single-line is only used when battery and sun are out, but when it happens...