Such things are neither new nor exclusive to Apple. Many companies are very obsessive about the correct usage of their brands.This is exactly the trash people hate about Apple. Developers don’t work for Apple and they can market it as they want and they the Apple VR headset whatever they want.
Stop treating the world as your subordinate.
For instance, when you want to publish something for Sony's PlayStation, you will get very detailed instructions how to write the console's name: it's one word, with capital P and capital S, including the number of the generation (2, 3, 4, 5, etc.) with a space between PlayStation and the number, without a linebreak inbetween.
Same with Xbox ("Xbox Series X/S", Xbox and Series starting with a capital letter, etc., etc.).
Same with Nintendo (it's "Nintendo Switch", not "the Nintendo Switch", not "the Switch", etc., etc.)
When you want to use Intel or AMD CPUs in your computers, you will have to follow detailed instructions on how and where to place the logos, how to write the model name and type, down to spacing, capitalisation, and placement of hypens (e.g. "Intel Core i9-14900HX" and nothing else). (Apple was famously exempt from Intel's rules.)
In how far the brand owners are able to enforce the rules is of course a different question.