Hi, as you can see in the screenshots I have a lot of unnamed processes running. It doesn't show any cpu usage, memory or anything. It says they are "root, -1". What does that mean? It's a root process yes, but the "-1"?

Also when filtering for cpu usage, I really don't have any with unusual high load. Tho, when I go take a look at system load, my cpu's are going crazy.

I can't terminate or kill those unnamed processes.

I hope someone can tell me what they might be, if they are the reason for my cpu's going crazy and if needed, how to fix it.

In advance, thank you for your kindness and help.

Have you tried this command to see whether it returns the same information as that "system monitor" thingee in the screenshot?

See man ps for more.

I'd immediately suspect malware - probably cryptomining these days. If you're not already worried, have a read of this for one example. There are variations, so this is just an indication of what's possible.

You might want to boot a live CD (or some other os) and try to run a rootkit scanner, see for example here: https://www.tecmint.com/scan-linux-f...-and-rootkits/

I just wanna hint that the librsvg package seems to be screwed up (read it in the Manjaro FB group) leading to glitches and high CPU load. Id wait until the next update and see if it persists and only then suspect malware.