Sad, isn’t it? For fun, look up Whirlpool, Albertsons, and Kroger on Wikipedia to see all the brands they own. No wonder prices are high when so much competition has been eliminated.
Nope, they are not, at least in terms of household appliances. BUT they still produce quality stuff in Germany and Europe. And they actually never have been separate. And HomeConnect is commited to HAOS, iirc they actually provide some code to the plugin.