Most of the time there is no 1:1 replacement, it all depends on which features you use from these apps. Some suggestions:
AMD Software
CoreCtrl can do most of the important stuff from the AMD software like GPU overclocking, custom fan curves and per-game profiles.
Logitech Ghub
Piper has a lot of support for different mice and keyboards, maybe yours are supported there?
Realtek audio
I’m not sure what Realtek audio does nowadays, which features do you need?
Video recording
OBS is available and does pretty much does the same stuff as on Windows. If you need to capture gameplay you will have to install obs-vkcapture which is the Vulkan/OpenGL replacement for DirectX capturing included on the Windows version of OBS.
Audio settings
Which settings do you require? What do you mean with “Audio quality”?
Unfortunately most Pipewire/Wireplumber settings are hidden behind config files and I’m not aware of any applications to manage them. The KDE audio settings are quite decent but limited in scope. However, most of the Pipewire settings have a sensible default and probably shouldn’t be changed unless you’re doing audio production.
qpwgraph is quite powerful when you need to connect multiple devices together or have virtual audio devices.