I don't think your link contains the evidence you think it does. I'm not seeing anything that looks like Qualcomm contributing device trees on behalf of system OEMs, for
any of the Snapdragon X products, so I don't see how you can claim that they're being selective. It looks like the device trees are mostly being reverse-engineered by the community, adding new system support derived from device trees for systems that already have some support.
Do you have any clear instances of Qualcomm contributing something that's specific to Snapdragon X Elite parts and does not work for Snapdragon X Plus bins of the same silicon?
Or even for the more general issue: have you ever seen a Linux driver include arbitrary restrictions that make it refuse to work on identical hardware just because the marketing name for that bin of the same silicon was different?
