Which is, well, fine, because LinkedIn is mostly a dumpster anyways.
When I have problems with a site it's usually because I'm blocking most JavaScript with uMatrix and I have to find the correct combination of scripts to make the site work for me without having to give away my soul to the gods of tracking.
As a software developer, it's been years since a customer told me that the sites I develop on Firefox don't work on Chrome or Safari. I don't even bother to check anymore. I couldn't check with Safari anyway and they are OK with that. The point is that if it works in Firefox it works everywhere. Of course we're not using any Chrome-only API but we never had to use one of them as far as I can remember.
Long weird pause.
V8 on its own is a technological miracle.
But all funded by a firehose of crazy privacy invading ad revenue.
So. I'll live with the odd pause and a bit of battery drain. I gave Google 10 years of my life as an employee in exchange for $$, I'm not interested in giving them the rest of my life for free.
What if you could take the benefits of the spending and jettison the side-effects?
It's called Brave, they have their own ad blocker in the source code written in C, so it can't be hamstrung.
Perhaps you haven't heard of Chromium. If so, that may be because Chromium doesn't spend as much on marketing as Brave.
https://www.chromium.org/getting-involved/download-chromium/
I personally like that Firefox isn't based on webkit/blink.
(I absolutely agree - especially when it's google turning off features when you're using FF... it feels blatantly anticompetitive).