I mean, what is the logic behind this. Why would I go into nagging mode and tell my user every 30s that "I am ready to connect" just because the BT device disconnected? How about you do nothing, wait 5mins, and if no other device connects you go to standby?
[0]: https://brokkr.net/2015/09/26/bluetooth-dual-booting-sharing...
It’s pretty 50 50 for me but the physical minimalism and not having the wire/socket wear out swung it in the end.
Although I admit, I own a FiiO BTR 5 that has BT and I can plug in my in-ear wired headphones - so I occasionally have a need for wireless listening. The battery of the FiiO is 13-15h however, and I also use it for other purposes (wired external headphone preamp). Additionally, in case the battery runs flat, I can always just insert the headphones directly into the device directly as a fallback.