Shin'en is known for games that really push the visual limits of the platforms they appear on. They've created gorgeous experiences on the Wii and Wii U, and they've done it once again with The Touryst on Switch. That's thanks in part to the decision to create a world with voxels.
In an interview with Gamasutra, Shin'en's Manfred Linzner says that going with voxels was a way for the team to achieve a somewhat retro-aesthetic. In some ways, Linzner says using voxels lets them see what games might look like if developers never jumped from pixels to triangles.
Linzner also goes into detail on how the graphical decision enhanced the game itself.
“We wanted to create an adventure game. We developed a few prototypes to find something special and one of them was located on a lush island. We made jokes how nice it would be to go on vacation on that island instead of sitting in the office. In that moment we realized that we wanted to make a game exactly about that - going on vacation!
...For us it was also important not to crank up everything to '11.' Having high detail everywhere is like having no detail at all. Often it was the absence of things that let places look special.”