With the newest Homey Pro Update to 10.1.4 it seems to work now. I get the camera screen to scan a barcode or click on “other options / without barcode” (I do not now the exact English translation as I am using Homey in German. That is great. 
Anyhow, I am still not able to add Matter devices from my bridge. I have a lot of Hue devices (44) and I remember reading about a bug that prevents adding a Hue bridge with a lot of devices. In the process Homey seemed to detect the Hue bridge (a dedicated Hue bridge screen with showed up), but then I got a timeout. The error message wasn’t really helpful.
So I tried a second bridge that I have, but is not in use. Reset, adding to the network, added two Hue play to it, checked that everything is working well in the Hue app, created the Matter code and tried to add this bridge to Homey using Matter. The same happened as before.
Did anybody successfully added a Hue bridge with so many devices, using an Android smartphone via Matter to Homey?
