Mostly echoing Ben's sentiments above...
For landscape photography a pancake style tech camera is strongly preferable across the board. It is far more rigidly parallel, more compact, more wind-resistant, and more precise.
The main limitation of tech cameras is they are not well suited to macro photography, very long lens photography, and require a digital back (e.g. not a GFX/X1D/Canon/Sony/Nikon etc).
A bellows camera works with a wider range of cameras (e.g. GFX/X1D/Canon/Sony/Nikon) but has far greater limits on wide-angle lenses and is harder to keep completely parallel (which, as noted by Ben) is more important the wider angle the lens.