On my PC, it depends on the region of the world where I am flying and the age of the data. I’ve not seen any dramatic world-wide improvement - regions that were covered in the various updates in 2020 are still generally better than those that were not, and some localized areas (as discussed during the FS Expo & Global Preview events) have received improvements in 2024. The 30 new biomes do help a lot to mitigate poor underlying textures.
Issues with streaming & performance though have detracted from the user experience. There is a long topic about this here: