It's not even your browser's fault.
RAM is a crucial component for a smooth PC experience. Linux doesn't require as much RAM as Windows. More is always better, but too much is also a thing. I'm not going to start with a "back in the day ...
Rowhammer attacks have been around since 2014, and mitigations are in place in most modern systems, but the team at gddr6.fail has found ways to apply the attack to current-generation GPUs.
It's unclear how widespread the damage is from the recent axios hack involving North Korean malware, Microsoft Teams, Slack, ...