You might want to reword this to mention the computer, specifically.

In what instance would your computer not be your device, seeing as you're installing drivers for your computer and on your computer? I don't really see how this could be misinterpreted. If you're holding a phone in your hand, and someone says to "restart the device" do you think "oh, they must mean Google Play services, or to unplug my headphones and plug them back in"? No.

In what instance would your computer not be your device, seeing as you're installing drivers for your computer and on your computer?

Because you're not installing drivers for your computer, you're installing drivers for a device. For example, if I already was using a dedicated graphics card and installed drivers for them, I could think "restart the device" means that it's going to restart usage of the graphics card / display process to use the new / updated drivers for the graphics card. The screen might go black during this process, and turn back on (as an example - not saying that I've seen this happen under Solus / Linux, but I have had it happen when upgrading display drivers under Windows).

If you're holding a phone in your hand, and someone says to "restart the device" do you think "oh, they must mean Google Play services, or to unplug my headphones and plug them back in"? No.

You generally don't install drivers on a phone, and a human being telling you to "restart the device" is different from an operating system telling you that directly after installing a new device.

The wording of the notification isn't specific, so misinterpreting it is pretty easy.

A computer is a device. You could then argue if we used words like "computer" or "desktop" people would say, well, mines a laptop, or a tablet. "Device" is an encapsulating term.
I cannot see any way in which this could possibly be misinterpreted, tbh.

As an Italian (but I'm using Solus in en_us), "device" makes me think of a cellphone/smartphone, I don't know how it seems in other languages. "Computer" is much more indicated. Just my two cents.

Let's make it generic for any language and use Reboot.

A computer is a device. You could then argue if we used words like "computer" or "desktop" people would say, well, mines a laptop, or a tablet. "Device" is an encapsulating term.

Yeah, that's the problem - a lot of things are "devices", when it comes to computer speech. Nobody should have a problem with the dialog using "computer" or "desktop" because Solus is a linux distribution oriented toward desktop computers. The user knows when they install it that if it refers to "desktop", it's talking about the operating system, even if they personally have it installed on a toaster or something.

Let's make it generic for any language and use Reboot.

Yeah, that'd be fine, I think. Just change it in any way to state that it's specifically restarting the computer or rebooting, and not anything else. Adding "You will lose unsaved changes" could also work.

But if nobody wants to change it, that's fine too. I just didn't 100% understand what the dialog meant (and I am a native English speaker, born in the US, and 26 years old).