Devices such as home routers and modems, access points, and set-top boxes can now be designed or upgraded to provide more robust support for Matter-based smart homes.
The CSA is on board to help with this issue too, with Matter 1.4 able to store and share Thread network credentials on a new device area for the standard: Home Routers and Access Points (HRAP).
As it stands, adding Matter devices to multiple smart ecosystems is a royal pain, but version 1.4 of the Matter standard paves the way for a smoother process.