Matter is a new smart home standard designed to provide connectivity across all participating smart home companies. Matter has over 280 member companies including big brands like Amazon, Apple, Google and Samsung.
As of October 2022 the Matter V1.0 standard has been ratified and a certification process is in place so we expect to start seeing devices over the next months and years to fill out this category.
The SmartThings hub is expected to be one of the first smart hubs to support matter. Samsung has announced that SmartThings V2 and V3 hubs including the Aeotec SmartThings Hub will be upgraded to support Matter through a firmware update at some point.