It’s mostly mission dependent as you mentioned, if the value of some images are different than others, compressing several pictures and selecting the best to get in raw is a good strategy, and you can also crop them to get interesting areas as mentioned.

It can also depends on the downlink bandwidth available and power/energy budget, so the optimal strategy will differ.

It can be misleading at times though, for example some interesting feature may happen to be just a compression artifact. A cloud looking like some strange human-made object for example, happened to us one time.