Ok ... we never said the random crash and from where before, so I did what you said 3 times and all 3 times going through several pages it indeed crashed.
Restore the tab and we're back in business only to have the same thing happen after scrolling down pages and eventually it does crash, but since I'm in multi-process mode the browser doesn't totally crash just the tab.
Make sense @feodor2? I hope you will (I know you will) figure it out because this is over my head. I've been testing with the previous version and this does not happen only in 68.14.0b