I've only googled it on a very surface level but I found one credible - and perhaps completely unrelated to these "news" - source talking about lidar or some other ground penetrating technique detecting signs of structures under the pyramids back in 2023 or something. Regardless, if there was any truth to this I think it would be lid on immediately - because initiated people probably already know. And assuming people in the know didnt already know we'd probably hear rumors of unmarked personnel moving in the area - while no official excavations would be granted. It does make me wonder though if this is the thing Ross Couldthart has been referring to. I believe he's been talking about a craft - and this suggests something els - but he could have gotten that detail wrong.