Support for in-wall switches by Bosch or Homemate IP?

Bosch and Homemate IP make a series of nice in-wall switches and dimmers.

https://www.homematic-ip.com/en/products/detail/homematic-ip-dimming-actuator-for-brand-switches.html

The nice thing about this series is, that they also provide a series of adapters so that you can retrofit existing light switches and have the new smart light switches match the decor of the existing switches throughout the home.

Is is possible to integrate these devices into an openHAB setup?

It looks like you would need a supported bridge.