In Street Brawl, after the buying phase ends, the heroes make no sound when punching and moving around in the spawn area. The sound start again when the round starts.
Happened to me too on Celeste with Stamina Mastery and bridge buff. I think there is a specific number of stamina that the UI can support, above that it glitches.
It happened already in few matches and sessions (so the game was closed/open) that the ping wheel would miss the left side, you could still use it even without the UI though.
While in game, if you bind m4 and m5 to the item keybinds, it seems like the icons are inverted: m5 on bottom and m4 on top. In the settings it looks correct because there is a dark background.
After disconnecting and rejoining, all the game sound (but some UI sound) were muted. They came back after ~30 seconds and it seemed to coincide with the clock ticking a full minute (like 32:00).
Sometimes the option "Play sound on background" is not enforced, maybe it works when you alt-tab the first time, then it stops and you can hear the sound when the window is not in focus.
OS: Linux Bazzite (KDE, Wayland)