Can't connect as central to M1 MacBook Pro as peripheral

[spieglt]

Using Mint 22, 6.8.0-49-generic kernel, on a ThinkPad T14s, though I've also tried this on Mint 21 with a USB Bluetooth adapter. I've been testing with my own code, then when that didn't work, the gatt_client.rs example and gattcat.rs.

When my Linux device is acting as a central, it can scan for a particular GATT service UUID, find the M1 MacBook Pro (running Sequoia 15.1) acting as a peripheral and advertising that service, and pair with it. But after they're paired, the Linux device can't enumerate any services. I've seen similar issues where the response was that just because a peripheral advertises a service doesn't mean that it's serving it from a GATT server. True, but in this case, Android and Windows devices can pair with this MBP peripheral and read from/write to the service. And this Linux device can pair/read/write with Android, iOS, Windows, and other Linux devices, so I do think it's an issue between these particular stacks. I've run bluetoothd -d, read syslog and journalctl -u bluetooth, read the macOS Console, but haven't found any solid reason why this is failing. Please let me know if there's anything else I can try, thanks.