I had to Google boron as I'd never heard of it, so the answer is no to both. I would not add any supplements unless on the advice of my oncologist. The supplements I take now are actually one of the topics I plan to discuss with her in a few weeks. My 15 second search showed boron in beans, and I do like beans so I don't plan on worrying about boron.

Dr. Lucas recommends 3mg boron daily and that’s why everyone got so excited about the prune study because prunes are a superior food source for boron and 6 prunes seem to satisfy that amount of boron more or less. https://pubmed.ncbi.nlm.nih.gov/11401245/

I’m trying to figure all this out myself as I would prefer to get calcium and boron and as many other minerals, vitamins, and nutrients from a healthy diet. It gets confusing when one reads about anti nutrients in certain foods which also contain good vitamins and minerals i.e. spinach, chard, nuts, legumes, and others. I then wonder how many nutrients etc. of what I’m eating are actually be absorbed and available to my bones. I don’t know how one is able to know.