I am lucky enough to own a pair of Bose QC35 II headphones, which can connect to multiple devices using Bluetooth. The headphones announce the name of each device they connect to. Sometimes, my Windows PC ends up with the device name all in caps, and the headphones spell out the letters rather than saying the name as a word.
It is possible to change the name your Windows PC uses for the Bluetooth device without needing to change the way the PC name is reflected elsewhere. To do this, use Device Manager and navigate to the Bluetooth radio adapter on your PC.
In the Properties for the Bluetooth Radio Adapter, on the Advanced tab, you can edit the name that the PC device appears as over Bluetooth. Here, I was able to change the name from all caps to a single capitalized word so that the headphones will capture the new name and report it out correctly.