I guess there is some security through obscurity argument they'd make, though especially the smart home apps aren't really security through obscurity - most of those have open-ish APIs for their products. I chose to keep the proprietary apps for their firmware updating capabilities. I was also fully aware of that limitation when I purchased the respective devices.
I'm working on getting rid of the remaining red apps in the productivity folder, but migrating data is time intensive, including finding a suitable open solution and setting it up.
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