Switzerland uses mostly 64kbit DAB+, by the look of the latest observations on https://www.wohnort.org/dab/switzerland.html?PageSpeed=off
Switzerland uses mostly 64-96kbps as per this outdated(?) list
https://de.wikipedia.org/wiki/Liste_der_DAB-Sender_in_der_Sc...
I saw a video a while back (it was since taken down) from a guy with a low power TV station who experimented with broadcasting much more modern video codecs. He experienced some good results with modern "smart TVs" largely because they have good hardware support for various modern video codecs and seemed to handle the streams just fine. He managed to get multiple 4K video streams over standard ATSC 2.0 signaling working on a range of different TV models. It seemed like a neat experiment.
This is not Switzerland, but the BBC apparently uses 192 kbps only at Radio 3 (their classical music station), while other BBC stations are either 128 kbps or 64 kbps only.