I only heard of Inovelli because of the fan canopy module during my research to try and find a solution for the house I just moved into where the switch controls both and there isn’t a wire for the fan.
I actually wanted the Z-Wave version, and I’m still not ordering. But I don’t know how long I can wait. Coming out with the Blue devices first seems to give them an advantage to anyone impatient, that’s for sure.
But I see in trips to stores older Z-Wave devices on clearance. There just seems to be confusion on them, and the fact there are newer and better series makes each retail outlet question if they want to buy the next version and then sigh as they have to put the older 500-700 series on clearance. ZigBee has that advantage in terms of stability among versions.
But I really respect Z-Wave going open source and 900 Mhz is a big appeal to me. I’ve no interest in adding more noise to my 2.4 GHz environment.
I will say, Leviton has been a good supporter, but even they are pushing their WiFi devices. They do, however, have a good selection that would meet my needs. They even have an add-on switch WITH an LED on it, which is enticing. (Will it work with Inovelli devices?).
That would be awesome, but now I have to wait longer before I buy anything in my new house 
It would be great to go all Inovelli and missing the fan modules was my biggest blocker. Second is lack of LED on the add-on switches… 
Well that’s an easy one. Those three founded Matter in 2019 with the Zigbee alliance. Also anyone who made a WiFi smart device will have a huge interest in Matter since they wouldn’t have to use some third party service like Tuya or write their own. Z-Wave, if I am remembering correctly, would only be addressable by Matter at the gateway level.
This is a good interview/video with the Executive Director of the Z-Wave alliance and it gives me good hope on the protocol.