Ah, thanks for asking! Those values you circled are set via the values under “Choices” in the Radio Button field.
As far as I know, I don’t think that the behaviour would shift whether you are using ‘group’ or not as that is an ACF thing rather than something field-specific. Flexible Content might achieve what you’d like because you would be deleting each component rather than activating/deactivating (if I’m understanding correctly). So that might achieve a similar goal in a slightly different way – just don’t know if that’s desirable for you/ your user.
Also could be worth looking into hooks like save_post, update_field or update_value to achieve something along these lines depending on what you want to clear/keep?
This thread might also be of use.
