There are tools that do this but it’s mostly for known issues or vulnerabilities (i.e. bad practice in coding or done after the fact). Some stuff runs code on at sandbox looking for sketchy behavior, but hackers may work around that by having malware that only activates in CD l specific circumstances or times.

There can also be “privilege escalation” exploits which can allow a rogue process to obtain root/admin, and even without the process would have full access to whatever the user does in terms of network/device/hardware/process access (or sudo, as applicable).

Not being able to run as root doesn’t help all that much if the process is able to access sensitive saved data, files and/or the internet