@ianb Definitions do not make the law. This is akin to considering a court judgment on the identification of the parties. On the meat of the matter, for example, the DMA says that gatekeepers like Apple have a security obligation and can take measures to secure their ecosystem but gives zero clues on what is allowed. The EU is already complaining about prices and costs to participants but never specified what would be fair and "non-discriminatory.”
@ianb They want many messaging services to be interoperable, but neither the officials nor the companies know how to do this securely. At this time, commission officials are learning how messaging services work.
@ianb and back on the security part the law allows “proportionate measures to ensure that third-party software applications or software application stores that do not endanger the integrity of the hardware or operating systems.” Both Google and Apple interpreted this reasonably to mean they could still require notarization. So far this is not clear but commission is already grumbling about it.