After the last Chrome update, I noticed that my SPS started to blink when I hovered over Chrome Browser UI buttons and by itself. But mostly when you move your mouse between the page tabs and URL bar.
Here is a PG with the mentioned Babylon JS versions and Chrome version
So now you know even more about what to put in your issue to Google Chrome. I’m just the end user and I found this. I was trying to help localize this but please don’t drag me into fixing it with google. been there from my point of view its a waist of time if your not a big player.
Actually what you described is not fully accurate. You can have any tabs open or just even wait and it will blink. A lot. Just to have like a hover effect triggered on any Google Chrome UI or even page buttons. Or leave that page open and move mouse they will also blink.