There are some interfaces in the bluez snap that are not auto-connected but that are usually needed for proper operation. These are:
bluez:bluetooth-control
bluez:kernel-crypto-api
Please consider them for auto-connection.
+1 from me for both of these (I am surprised that the bluez slot doesn’t grant all of the required permissions but I can’t see any object to bluetooth-control 
- also kernel-crypto-api seems reasonable as bluez uses it for doing crypto in various modules).
I expect both of these to be uncontroversial so I have granted them with my provisional +1 - if other @reviewers disagree, we can revert this while discussing it.
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