Leader,
coming back to your original question and the "why" of my idea of a longer lens.
I think that a longer lens is very useful for landscapes. It allows isolating some parts of it, which comes handy in densely populated countries (like your or mine) where you (too) often have power or telephone wires or similar inelegant items. More importantly, it compresses perspective and provides a "different" point of view.
Obviously, it all depends on what you want to do

Wide angle is the "traditional" way of doing landscapes, and is so for a reason. But if you already have a 50mm, a 40 might not buy you much. 30mm more so. And a long lens even more. I mentioned 180mm as it is one of my most used lenses (and one of Hasselblad's best) but obviously a 150 or 250 will do too.
Here a couple examples, taken with the Hasselblad 180mm.
California:
View attachment 262988
Not coming close to Ansel:
View attachment 262989
Alps near Munich:
View attachment 262985
Same location, taken with a 50mm lens:
View attachment 262986
Hope this helps

Good luck with your decision, let us know what you choose!