There are specialized computation kernels compiled for NPUs. A high-level program (that uses ONNX or CoreML, for example) can decide whether to run the computation using CPU code, a GPU kernel, or an NPU kernel or maybe use multiple devices in parallel for different parts of the task, but the low-level code is compiled separately for each kind of hardware. So it's somewhat abstracted and automated by wrapper libraries but still up to the program ultimately.
I also have a splitter which lets you power an USB device from a separate power supply (i.e. D+/D- lines are connected to a host and +5V comes from a separate plug, ground is shared though). And optical TOSLINK is a nice option where available.
I have a similar FiiO gadget and it makes less sense for me than a direct wired connection to the phone. It's a relatively bulky device that needs to be charged way too often, also it reduces voice call quality (like any other BT Classic device).
One can't be a real infosec influencer unless one blocks every IP range of every hostile nation-state looking to steal valuable research and fill the website with malware
And people who are financially interested in letting users side-load apps (malicious or otherwise) are good at what they do. I mean, even Russian banks that are banned from the Apple App Store are still finding ways to distribute iPhone apps.
I have a stereo system with a DSP which I've spent quite a bit of time adjusting with tools like REW. I do care. I'm obviously adjusting my expectations because the laptop is indeed small but it really does sound great and I prefer it to typically boomy resonating bass-heavy tuning of small speakers. It's also very good at stereo separation, can even do behind-the-listener flyby from a Dolby Atmos test file.
Laptop OLEDs aren't usually the best wrt color accuracy and uniformity. I've tried two. One had green splotches across the screen, the other just displays a certain range of gray shades with a green tint (so e.g. a black-to-white gradient test image has a green band in the middle). And there's always a static noise pattern of sorts due to non-uniform pixel brightness.
Yes, I've bought a chinese ("Acasis" brand) TB4 hub which has three TB4 downstream ports and an USB 3.x hub with three downstream 10 Gbps USB-C ports. There are also weird combos like one downstream TB3 + three downstream USB-C 3.x. Still not great, but it's better than a single downstream port.
Apple-Apple Bluetooth speech codec is a variation of AAC, I believe. AAC-LD if I remember correctly. But still, having microphones in one's ears is suboptimal. There's a lot of processing required even though the codec is no longer completely awful.
On an unrelated note, I tried doing calls with a stereo mic setup but participants were actually uncomfortable with the ASMR-like effect of the audio.