I run ubuntu 21.10 and have a 4 core processor with 4 threads, but I only get 4 cores:

I run ubuntu 21.10 and have a 4 core processor with 4 threads, but I only get 4 cores:

You want to read/read/ged only core number info from those tool, @Sara.
Here's my 4 Core/8 Thread CPU.
If you need to see another info from there, i suggest you follow tutorials like this (just find one for you task manager environment tool)