I would argue the openness of the internet and computer industry is the reason we have it such great products.Banking and finance, air travel, telecommunications, energy, health care and medicinal - they are all heavily regulated.
IT and communications have rarely been about proprietary systems and walled platforms. Computers have been able to exchange information across manufacturers and platforms for decades. There has been technical interoperability "since computing began".
I as an Apple user am using the same internet access and internet protocol standards as my neighbours on Windows and Android. Same as twenty-five years ago, when we were using the same phone network with different - but interoperable - phones and modems from different manufacturers. And the same interoperable GSM standard for mobile communications.
Microsoft did just that. Their success was built on low barriers to entry for developers, on the availability of everyone being able to develop and offer software for their platforms.
On the flip side, that success has allowed them to become the dominant desktop computing platform (OS) and in the process created huge barriers to changing platforms - for developers and consumers. And that in turn has allowed them to push what is basically spyware (Windows 11) on the market.
But coming back to Apple: Mobile communication systems / platforms such as iMessage and Facetime aren't rocket science. Steve Jobs, in fact, boasted on stage how they were using existing protocols and pieces and planning on making it an open standard. These things don't require "ridiculous amounts" of R&D.
Again, interoperability of communication systems has been a key driver in making them as cheap, accessible and ubiquitous as they are today.
Imagine if xerox had prevented apple’s first GUI operating system to be sold. Imagine if everyone used proprietary protocols and solutions. Imagine if only intel had x86. Imagine if only AMD had 64bit extension of the x86 instruction set. Etc etc. it would be like every town had their own electricity frequency and proprietary plugs. It would be a nightmare if stagnation