To add... based on the discussion on Digital Spy, this seems to be a reactive move by the BBC out of concern re: international music rights.
We also had the BBC announce the closure would take place in Spring 2025, but it was pushed back to July.
In the original plan, I don't think there would have been any option supported directly by the BBC site for listening to channels other than R4 and World Service.
forums.digitalspy.com
We also had the BBC announce the closure would take place in Spring 2025, but it was pushed back to July.
In the original plan, I don't think there would have been any option supported directly by the BBC site for listening to channels other than R4 and World Service.

BBC to withdraw Sounds app for non-UK listeners - Page 11
If you are outside the UK use www.bbc.com/audio This gives you domestic radio https://www.bbc.co.uk/mediacentre/2025/articles/update-on-access-to-bbc-sounds-outside-the-uk In the uk this redirects to BBC sounds This includes the BBC’s music stations - BBC Radio 1, Radio 2, and Radio 3, 6Music...