while i wasn't sure if CrBrowserMain was really chromium, from some googling i did see a bunch of people reporting the same crash with electron-based apps around the web. so it seems there is something here, maybe a bug in chromium.
juan - do you think the problem is intel/apple's drivers for the integrated graphics, or does it have something to do with the automatic switching? i am considering a 2020 13" macbook pro but i think they only have intel integrated graphics. if the problem is strictly the intel integrated graphics then maybe that is not such a good choice of machine.
i currently have a 2013 macbook air which also has integrated graphics and have not had problems but i don't use the laptop that intensively for PI, so it is hard to tell how stable it actually is.