Your system information

• Steam client version:
  
• Distribution: Xubuntu 19.04
• Opted into Steam client beta?: Yes
• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

When broadcasting is enabled, exiting a game causes Steam to become unresponsive for several seconds.

Demonstrative video: https://youtu.be/Mq6CDLi2u9M

Steps for reproducing this issue:

1. Enable broadcasting
2. Enter a game
3. Exit said game
4. Try to click on anything on steam