How did you list your hardware like that? Where it shows the key specifications for each part as bullet points, not the bullet points though, if that makes sense. I know how to make bullets, I mean the data.
Was is generated with a script or did you copy and paste individual part stats from their website specs or some other way?
I have a few ways to generate info, like with inxi or searching pcpartpicker, but there often there is not enough info, important info that is missing, far too much info about stuff I don’t care about or I have to spend a lot of time searching for specific data and have to copy and paste each feature for each part individually which can be too time consuming.
What you have shows pretty much exactly what I would like, so I could easily share when needed.
There is a bug that is open right now which sounds like it might be one you were experiencing or possibly explains part of the issues.
https://bugs.kde.org/show_bug.cgi?id=501073
Like the web browsing might have been from middle clicking, which causes a lengthy hang and resuming from suspend and powerdevil are a prime suspect for it.
The login wait might be an issue I vaguely recall about the splash screen and that disabling it removed the startup hang.
I’ve been exclusively using Manjaro KDE since September of 2021 and the linked issue I started getting a couple months ago and it’s gotten bad enough to make me want to start hopping again.