Will try and keep an eye on when it happens. I don’t use my phone consistently - switch between hands and thumbs all the time and it doesn’t happen all the time for me. Chrome on Google Pixel and Google Pixel 3.
I would guess that it’s likely to affect those with smaller screens more as the touch areas are smaller and so there’s less room for error.
Tbh it’s probably only happened about a dozen times since they added the menu, it’s not a huge problem for me - my main issue is simply that it’s bad UI design to hide elements like this along with the attitude of the Devs to anyone who thinks their changes are for the worse.