That is only "modern" in an artistic sense. All of those designs look like the 1960s. Im sure it sells to those looking to emulate past stylez, but not to young people looking for fresh ideas.
Any modern large format printing company can print whatever you want onto a wallpaper substrate. Off the top of my head I can't think of a vendor to use as an example of existing designs, but if you want something interesting to cover your walls it's pretty easy to get done these days :)
Remember that the companies producing them use rolls in a printing press. This also allows for 3-d effects by applying e.g. resin with a deep-cut negative on the roll. The substrates lending themselves to this use are also probably different between direct digital printing and use of such a steel roll.
So a lot of offset printers will be like that, however if you can find a company that operates a flatbed such as a SwissQ, you can actually print 3d effects with layers of resin. While it's still a roll-to-roll process, because it's dragged across a large flat table while printing they can do some interesting things.