Nice catch. So it is possible to run both on most switches in that product family. The one I have for example is running RouterOS and performing various L3 functions. Here's a product table explaining which ones can support RouterOS: https://help.mikrotik.com/docs/spaces/SWOS/pages/76415036/CR...
The one you linked unfortunately only runs SwOS, which is really not very good.
However, current versions of RouterOS (i.e., any 7.x version) do IPv6 natively without an additional package.