My Galaxy S10e drops bluetooth connection when Telegram or WhatsApp calls are interrupted by GSM calls. Once I decline a GSM call (or it is declined by the caller) the S10e changes the sound output to regular speaker and drops BT connection. To reconnect I have either to end the call or to put the Galaxy Buds+ back into the case for several seconds.
This happens when I use Galaxy Buds+ and Hands-free in my car.
This is extremely annoying and I hope there is a solution for this issue.