This repository appears to be unmanaged.

[Kamilake]

Does anyone have a project similar to this or a forked version of sysmontask?

[begin-theadventure]

Does anyone have a project similar to this

System Monitoring Center (edit: archived).

There's also Stacer, but it has been abandoned.

[Danny3]

None of them unfortunately have an logical and easy to use interface as this!

[begin-theadventure]

Mission Center
Resources
GNOME System Monitor
KSysGuard (archived)

Edit: LikeTaskManager (unmaintained)

[Danny3]

Mission Center

This seems to be the closest and it's pretty active!

It also has a working GPU part!

Great find!

The only thing that I don't like is the awful title bard that looks so weird on KDE Plasma and also refuses to respect my custom window decorations.

[pumpkinlink]

I was personally just looking for a solution with the "rMemory" equivalent feature, Resources seems to be the only one to do that correctly. Mission Center shows double the value for some reason... It's especially useful to check memory usage for apps with many processes like Electron-based apps, Chrome, Firefox, and IDEs

[Danny3]

For GPU information and statistics only, there is also GPU-T:
https://github.com/lseurttyuu/GPU-T

And for AMD users only, there is also this great information and statistics GUI + TUI called AMDGPU_TOP:
https://github.com/Umio-Yasuno/amdgpu_top