The ones from smaller company can be, from what i have been told. Its kinda like with knockoff electronics products where you can get a carbon copy or better version of an arduino for a fraction of the price. You might have to look, but they exist. Here they just dont at all. With phones its pretty bad sadly but with other things you can often get dope open hardware manufactured designs of all sorts of stuff.
I just wanna be able to easily hack my car tbh. (Lmao “i” dont even have or want one) I want there to be car nerds like with combustion cars but for electric ones. While for normal consumers that might not be important, it is very important for the people that you hire to repair it for you. Right to repair is specifically important for repair shops. Documentation would be cool, but lets start by not putting DRM into cars to actively prevent repair.
Also CalyxOS on FP4 is great, very easy to install and no issues so far.