Hardinfo:
Hardinfo is a system information and benchmark tool designed for hardware analysis and report generation.
It gives you the most intensive system hardware and benchmark info I have found for Linux. Hardinfo will also create HTML reports on your system’s hardware.
Hardinfo is a lot like AIDA64 for windows. Hardinfo doesn't have all the monitoring that AIDA64 has but anything you need to know about your Linux system it will have.

To install the hardinfo package on your Ubuntu 18.04, 20.04, Xubuntu 18.04, 20.04, Mint 19.3, 20 Linux system/s:
Type or copy and paste this hit enter: sudo apt update (or sudo apt-get update)
Type or copy and paste this hit enter: sudo apt install hardinfo
Type or copy and paste this hit enter: hardinfo -rma devices.so
To start the program (you can create a start menu item if you know how)
Type or copy and paste this hit enter: hardinfo (After install it can be found on your menu or search as "System Profiler and Benchmark".

This is my system it's not Ubuntu 20.04 it's Xubuntu 20.04 XFCE doesn't have the annoying side bar and I have a menu I can READ.

Click any item on the left to see the info, scroll down to see all items and benchmarks.