That’s a competition issue not an incumbent problem.
Exactly. And that's what competition laws deal with.
Put the onus on The competition to develop their own operating system
Hardly anyone wants that or can do that.
Apple doesn't want to lose that market share.
Consumers have gotten used to the duopoly as well and are shy to switch - they will never switch without a comparable app ecosystem existing.
The EU doesn't want to invest the billions.
Microsoft has given up on it - and if they can't market is successfully, who else can?
I do disagree as the the laws were crafted imo specifically for apple
The law covers shopping and social networking sites/services that Apple doesn't even operate.
As the iPadOS ruling shows this is no better than a kangaroo court.
As I said (more than once), iPadOS is just a different brand name for the name iOS - on bigger screens.
Same as the different Windows OSes that are - correctly and reasonably - lumped together as one OS.
Why can’t someone release a fully functioning smartwatch on iOS?
Does Apple allow third-party devices to interface with the iPhones' contacts and calendar?
Does Apple pass through notifications from the paired iOS device to third-party apps - let alone devices?
Does Apple allow dialling a phone number or writing a text message vom a paired third-party device?
Does Apple allow passing a call from a smartwatch to the paired iOS device - or switch to Bluetooth earphones?
Does Apple allow competing devices as a camera shutter button or sync route maps with a mapping app?
Does Apple allow mini-apps or widgets from third or fourth parties to be synced over to the watch (say, I have a banking or stock trading app on my iPhone, which does have watch "companion" - and both are obviously not from the watch manufacturer or Apple).
Can a third-party watch piggyback on the iPhone's internet connection at reasonable battery usage?