Not to mention directly feeding a manufacturer with no support for Linux and several very problematic behaviors (iOS walled garden, no GPL3 in app store as well as no custom web engines + other bullshit limitations, NIH syndrome of galactic proportions) in place ?

Linux support by manufacturers, even when it exists doesn’t really exist so don’t overstate that.

How is ios related here? Should one settle for a worse laptop based on a completely different division of said company? OSX is reasonably open and you can mostly use it as a regular linux due to its UNIX-isms.