Ask HN: Signal App recording screen when is in background

Has anyone observed it? After the new macos update, there is quite a visible icon when screen/sound is recorded. I had the Signal app active in the background, when I noticed that at first - it was recording my screen for a few seconds, and then recording sound (the same for a moment). I didn't catch it on screenshots (for a moment I am trying to filter system logs). So as before - has anyone also observed it?