@Almighty1, Interesting. I've never had "Dell Support Assist" or "Dell Command | Update" not display the correct BIOS.
The sound quality on both my Dell XPS 9510 and my son's Dell XPS 9520 is superb.
My experience is that "Dell Support Assist" and "Dell Command | Update" work reliably. I run "Dell Command | Update" every day and, if I ever have a problem, I'll be sure to post it in a new thread.
Dell Support Assist and Dell Command | Update which is not the same as Dell Update, all three display the correct BIOS but the problem is sometimes they keep trying to update the same thing over and over even after you updated it and it does not always show everything that needs to be updated. A good example is Power Management as some people use Dell Power Management which is a standalone Power Management app but that will not install if you have My Dell installed so the only way around it is to uninstall My Dell first before installing Dell Power Manager and then after Dell Power Manager is installed, to install My Dell from Microsoft Store. Dell had been trying to push My Dell instead of what the system came with. What I was referring to is in Windows Device Manager, there is a section called Firmware and under that is System Firmware which will show the version number, that only gets updated if Windows Update decides to push a update to it. If it doesn't, it will show a older firmware number, this has to do with the UEFI bioses. I have taken apart all my Dell laptops notebooks including swapping out all parts including the motherboard. The Dell Inspiron 8200/Latititude C840 and the Precision Mobile Workstation all share the same motherboard, only the BIOS is different so they all have the same support for memory and the nVidia Quadro grahics card. The newer Dell's such as the XPS 15 9570 are not modular as the GPU is just the chip soldered on the motherboard next to the CPU and share the same heatsink and pipe. The XPS 15 9570 is a bad design because if you looked at the bottom, air enters only on the left and right sides of the bottom as the CPU/GPU and heatsink and fans are actually facing down on the bottom side of the motherboard.
This is what the XPS 15 9570 looks like on the outside for the bottom:
and this is what it looks like on the inside, notice the middle does not have vents compared to the outside:
I was not referring to the sound quality but Dell atleast on the XPS 15 9570 only provides HDA drivers and not UAD which is a requirement for Windows 11 as UAD are DCH drivers and Dell does not make UAD drivers for the 9570, only HDA which is several years old. This explains the UAD vs HDA drivers as it is not about sound quality but the way it works on the OS:
Although discussed and implemented long before, starting from early 2018, a new type of Windows drivers has become the de facto standard for new PCs. The DCH (Declarative Componentized Hardware supported apps) drivers. Windows DCH Drivers are driver packa
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If you want to talk about sound quality,
@Cliff S is the one who can tell you what version(s) of Realtek drivers sound good and not sound good. The sound quality on the Dell has way lower output compared to the ASUS G74SX-3DE for example because of the design as it also has lower power output.
No one said it was not reliable but unless you compared what things it detects as new compared to the website using both manual input of the model number and system tag, you will find it does not show everything that has been updated. There is also no need to run it daily as Dell only updates things once or twice a month so even weekly would already be too much as seen below and actually adds to the wear and tear of an SSD which does have limited cycles unlike a physical hard disk.
My Dell sounds good for a laptop. Of course it isn't high end audio. I don't think I need 
