When learning a kanji for the first time, you’re shown common words that use that kanji. However these words are not shown when reviewing.
It would be extremely useful to see these in the “item info” when reviewing too. For example, I frequently discover that I already knew a word that uses that kanji without realizing it. If I had known, the pronunciation of the kanji would’ve been MUCH easier to remember.
The only downside I can see is that you might accidentally reveal the answer to another kanji or word upcoming later in this review session. However this is easy to fix - hide the word with a “click to reveal” mechanic if that kanji/word still needs to be completed in this session.