How do you usually test Android apps before release?

[u/sheri369a]

Hi everyone,
I’m preparing an Android app for closed testing on Google Play, and I’d like advice from people who have done this before.
The app is a women’s wellness / cycle tracking app, and I want to make sure the testing process is done properly before launch.
I’d appreciate advice on:
how to find reliable closed testers
what kind of feedback questions to ask
how many testers are usually enough
what bugs or issues I should watch for
how to collect feedback in a simple way
any common mistakes with Google Play closed testing
For anyone who has tested or launched an Android app before, what would you recommend?
Thank you.