Now that we’ve clarified the situation with Matter devices, I’d like to say a few words about firmware updates for Z-Wave devices.
With a workaround, it is also possible to update the firmware of Z-Wave devices without having to exclude them:
In addition, @Emile said in the Homey YouTube podcast #3 that it’s generally possible to update the firmware of Z-Wave devices via Homey, but this feature would have to be integrated by the app developers into their apps:
However, I have already been informed by two app developers that this is not true… 
