Hello,
I recently installed Nextcloud snap instance (31.0.8). Configured TURN/STUN server along with High Performance Backend via Spreed Signaling GitHub - strukturag/nextcloud-spreed-signaling: Standalone signaling server for Nextcloud Talk. - built it specifically for mcu. The calls work, so I proceeded to make Progressive Web App using Chrome. It also worked fine until I realized there were no notifications coming in for texts/calls. Hence I did F12 to see if there was any error. Upon reload, the console said, Not connected to signaling server yet, defer joining room.
Help me understand where is the issue.
Hey @Charlie_Scientist, welcome to the Nextcloud community and thanks for supporting Nextcloud snap 
Sorry to hear you are having issues with your Nextcloud snap installation. If you’ve come this far, you’re on the right track! There is a good chance someone in the community has had a similar issue and knows how to resolve it. That depends on how you request assistance. So read your request for tone, avoiding hyperbole and assuming good intentions.
Below are some links to how-to’s answering frequently asked questions and may help you help yourself;
meanwhile, this has been tried and tested using the snap: High Performance Backend for Talk on Nextcloud with Docker
you may want to activate Configure HPB client push for Nextcloud snap · nextcloud-snap/nextcloud-snap Wiki · GitHub
this seems to happen when federated talk sessions are accessed… is that correct?
using these too and cannot confirm your issue using snap…