You can't uninstall anything from there, but you can find where those components reside. Since the operating system resides on a completely separate and unalterable volume, you can't remove anything from it anyway. But by the same token, nothing can be installed on it either unless the operating system puts it there... and only Apple can do that through their secure servers. That's what makes macOS impervious from "viruses".
Using Activity Monitor is a good way to determine if a rogue process is running but I wouldn't lose any sleep about that one.
Rather than ask more questions whose answers aren't likely to help you sleep any more soundly, consider using EtreCheck. How to use the Add Text Feature When Posting Large Amounts of Text, i.e. an Etrecheck Report - Apple Community contains a download link and instructions for posting its report in a reply to this Discussion. It is not a definitive, 100% foolproof way of determining the absence of malware (a logical impossibility), but it will readily identify common causes of trouble. Use it as you see fit.