Nothing is fixed in Switzerland…
World Update 18 was released for MSFS2020 and it DID include what you see in the trailer. But then with the release of MSFS 2024 they replaced everything again with the rubbish material we see today.
That’s the worst part about this mess. It was completely fine before they released MSFS 2024. Only with the new sim did they bring the horrible brown stuff.
You are right, so i edited my post… This World Update 18 was for the MSFS 2020. Was I misled by the 2024 logo in the top left of the image/video?
It’s hard to believe that MSFS 2020 looked so good back then… 
Oh man, what have they done. I know, it’s not bad everywhere, but why isn’t something like this a priority for updates?
Only partially correct: World Update 18 for msfs2020 „introduced“ way worse bing maps than the one ones we had back from world update 6 from 2021.
Msfs2024 made it look even worse because it combined the terrible World Update 18 Bing Maps with the awful seasons brown filter and season desaturation filters.
Switzerland looked ten times better after the World Update 6 (until WU18) Because there (WU6) they used, I assume, the official Swiss government Swisstopo imagery.
With World Update 18, they then used very bad yellowish Bing Maps again, that often have no data at all in the shadow side of mountains. That was way better before.
So: Since World Update 18, we have this horrible Bing Maps in Switzerland, PLUS now with MSFS 2024, on top of that, we have the desaturation and brown filter.
Those things combined make it look so awful.