After some initial tests on a dev board, I got a Theengs BLE bridge and am collecting data from the BLE devices I have into Home Assistant. Pretty happy with it so far.
To have the Arc backup icon appear with Sonoma and Bartender 5, it nows needs a script trigger. It took a little bit, and I have the Arc icon only appearing when a backup is running. Here is a gist for the script. 💻