I have matte backsplash tile. It requires no more or no less care than traditional glossy tile.

These days most porcelain floor tile is produced in a matte finish to make it a safer, less slippery surface. I did use a glossy porcelain in my formal powder room as it is only used by guests, no chance of water being on the floor and most of the guests will be wearing shoes. Some of my shower walls have glossy tiles and some have matte tiles, depending on the look/design I wanted for that space. For my backsplash I used a honed marble. I have large windows and was getting too much glare reflecting on my polished counters when I tested glossy tiles.