I also notice that Steam is not in the pulseaudio list anymore.
No more sound via Remote Play.
Hello @laichiaheng, are you still experiencing this issue on an up to date system?
Closing pending feedback.
Nothing extracted yet.
I also notice that Steam is not in the pulseaudio list anymore.

Your system information
Please describe your issue in as much detail as possible:
No more sound via Remote Play.
Steps for reproducing this issue: