So is the Rpi 4 susceptible to Spectre? There is no information about it even though the chipset is apparently
Source: https://www.androidauthority.com/meltdown-spectre-kpti-82752...
AFAIK Spectre implementations have been limited to security researchers in universities ATM.
So I'll ask, is it worth worrying about this for you? In terms of vulnerabilities there are lower hanging fruits.
This isn’t necessarily true for your smartphone, because some ARM CPUs don’t do the speculative execution that Spectre/Meltdown exploit. For example, CPU in the raspberry pi 3 didn’t have these vulnerabilities which I assume is why the parent was asking this question.