It happened on and off the past two weeks or so but was considered not a bug in an earlier report I saw. I also encountered it a few times, but since about 24 hours ago I have had no luck playing anything.
Likely changes or countermeasures on G’s side, or part of the embedded as changes that is being talked about, is my guess.
As a user of the old Opera browser back in the day, I cannot express how much I have longed for this feature! Really looking forward to this 🥳