MacBook Pro stops giving sound, which comes back muffled after closing and opening the lid

I have a very strange issue with the sound on my MacBook Pro 13in (Intel, 2020). After some time, the sound just stops. Usually when switching between streaming videos (regardless of the browser). Restarting and shutting down does not help. Only after closing and opening of the lid does the video have sound, but it comes back muffled. As soon as I try playing another video, the sound is gone. And not just for the videos, the system sounds are gone as well. After closing the lid and leaving the MacBook alone for some time, everything comes back working normally! And that lasts for some time, then the issue repeats. This started after the 13.4 update. Sound settings show nothing out of order. NVRAM reset does not help. I also reinstalled the OS, that does not help either. I have the latest updates, apparently 13.5 update did not resolve this issue. Does anyone have an idea how to resolve this?