I disagree with that. Apple was one of the first to jump on standardized media. They were using SCSI back in the day, and Ethernet, and USB, and Firewire, and SD cards, etc. etc. etc. Their own hardware is proprietary. They are/were a hardware company. But I'm looking at the MacBook on my desk and none of the things connected to it are Apple branded or single-source standards.
A bit like saying that the pictures taken on a sony-camera can be viewed on any display.
Apples software only run on their own hardware and their hardware only runs their own software. It is a huge split in the ecosystem and any advance Apple has makes future of computing more bleak and proprietary and void of choice.
Their constant battles with right to repair alone is pathetic in its own right. And they had to literally be forced to give up their lightning connector, because their walled garden of accessories was just too profitable. Not sure how one can view that differently than what Sony did.
Only difference is that Apple has a borderline monopoly, which of course makes it immeasurably worse. Sony lost because of competition.