What is the technical reason why DDP AppleTalk doesn't work with WiFi?

Since we're on the topic of AppleTalk / DDP, I have been doing some Wireshark captures from said virtual router to get a better understanding of AppleTalk. The packets are just raw data on UDP port 387 (port resolves as "aurp").

It appears, at first glance, that Wireshark supports interpreting AppleTalk: it includes "dissectors" for ATP and DDP. However, they don't appear in the list of "decoders," and I can't figure out how to get Wireshark to dissect or translate these packets.

My Wireshark is the latest version (4.6.4).

Is there a dissector or translator missing? Or is its support for ATP limited to analysis of AppleTalk traffic over TCP?
 
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