I found reading the TAILOR RT clinical trial helpful.

One arm of trial is AI only ( anti hormone treatment) - second arm of study was AI plus standard radiation. It’s phase 3 trial so they pretty much expect AI only to be an effective treatment because they cannot offer an “inferior” treatment in a clinical trial.

I applied for the trial and was eligible from a BC perspective but had had a solid tumor stage 1 other ( resolved) cancer within 5 years prior . The trial required a 5 year lapse .

Check it out and discuss with radiation oncologist