its fairly easy to replace.
These work with the steering wheel controls I believe, bit pricey, but certainly an interesting option! I've never tried one but I was tempted before in an older car with the HU-850
https://www.bluepower.se/en/product/audio-video/car-stereo/custom-players/volvo-s80-98-06-headunit-arm-2016-version.html
I believe they updated the newer versions so the font matches the Volvo oem style, although not 100% sure on thats