I've just bought the 365 version of it. I was hoping for lower temperatures and lower noise levels with the 365 CPU.
After a couple of days of configuration as a web development machine. I started working on it, and I found that slight electronic noise/coil whine when idling is quite annoying for people with sensitive hearing. My old HP ProBook G8 445 (Ryzen 5600U) is dead silent when the fan is not running. As I see that the newest HP EliteBook X G1a 14 AI also has this issue. What a disappointment. I was also considering that laptop with 64GB of RAM.
Anyway, I'm going to keep the laptop after days of configuration as I'm working with an external monitor and will buy a 2m USB-C Display Port cable and place the laptop further from my ears.
The glance screen is terrible with reflections, I had to cover it as it's like a mirror sitting next to the external display.
I couldn't install Linux for a dual boot, because BIOS secure boot doesn't allow booting the Linux loader. I hope I'll be able to import EFI keys somehow and install Linux because I need both Windows and Linux for my work. In the worst case, I'll probably go with the HP Elitebook G10 on 7840U/HS CPU just to have a separate working Linux machine. As I see from the reviews, previous EliteBooks don't have any electric noises/coil whine.
Otherwise, it's a very good laptop. I changed the CPU Performance mode from Aggressive to Efficient, and the fans turn on rarely. This change doesn't affect the performance of my workflow at all; everything feels very fast and snappy compared to my previous machine with 5600U. I use the USB concentrator on my external display, so a few-port selection is not an issue at all. The internal speakers and sound are pretty decent. This would be an ideal high-performance work machine if it weren't for the static electrical noise.
I don't know how to buy laptops in the future, even in real stores, coil whine is hard to hear because of the noisy environment of the store itself.