Issue with See-Through Effect in Some Games on Quest 3

Today, I noticed something strange while playing several experiences/games on my Quest 3. This issue didn’t happen in all games, but for example, when playing Walk the Plank, while standing on top of the building inside the game, I could still see through the virtual world and view my real-life surroundings (e.g., my friends in the room).

This wasn’t happening 2-3 weeks ago, so I’m wondering if this is some kind of software bug or an unintended change in a recent update. For reference, I was within my guardian boundary, and nothing unusual happened with tracking otherwise.

Has anyone else experienced this? Is there a known fix or setting that might be causing this?