Hi Darwin,
usually, we do exploratory testing after the main feature finishes. It will help us find out the flaws not only in development but also in design. In the past, it really took a lot of time to document unexpected results especially doing exploratory testing. Utilizing an instant replay recording tool can really help. We’ve been trying out several but now we use QAReplay. Doing frequent exploratory testing is considered necessary and choosing the right tool can do exploratory testing more effectively.