Well... no. Not every way. I'm a TES super fan and I still wouldn't say that. Skyrim's scale feels like a theme park, the environmental transitions are awful, and there are no forests in the game - just sparse collections of trees. The Witcher 3's environment team understood the importance of sub canopy, edge effect, shrub layers, etc with their forest design, while Bethesda thinks forest = mutiple copies of the same tree model in a semi confined space. You can also see a much more prominent impact from human landscaping in TW3, with farms and sub-urban developments shaping the land around them, whether that's fields of wheat, grazing livestock, or something as simple as pollarded trees around villages (something so niche I'll bet less than 1% of players even noticed or understood). Skyrim has some tiny fields around Whiterun and Rorikstead that act as farms, but... yeah. Most of it is poorly handled.
Bethesda nails the feeling of something always being around the corner, and having a great vista in front of you every time you round that corner. But from an environmental perspective they leave a lot to be desired, and were outclassed by the world of The Witcher 3 in almost every way.