So, the issue has continued since I first posted about it.
Checking the chrome task manager did not show an obvious culprits.
Oddly enough this is happening on my work computer (32gb DDR4 Ram) and my laptop (16gb), and the ram is usually less than half utilized when it happens.
Aside from chrome complaining its out of memory, windows itself complains and starts shutting chrome down.
I have around 40/50 tabs open usually, but that's nothing compared to what I used to have (100+) before this issue came about...