Are there industry groups representing home automation solutions that push back on these decisions?
But I suppose a company that controls 70% of the market is uninterested in what anyone thinks, including their own customers.
There is a newer protocol called "matter" that a lot of big names have gotten behind. These devices are slowly rolling out, but id check for matter compatibility with any hub at this point.
As for the hubs, use open source that are not cloud based. The largest and most active project is called Home assistant. Its robust, has good options to build it yourself or buy devices, and it's dedicated to being forever FOSS. Another hub in the same "local, FOSS" ethos is called Hubitat. Their UI/hardware was easier than home assitant for a long time, but not really anymore. I still consider them more "turnkey" but both systems work great and support literally thousands of devices.