How to debug effectively?

Hello,

I wonder what are the best practices to debug and having efficient logs from app installed from the store.

Actually, I encounter some issues with Xiaomi devices (ex: Xiaomi Redmi Note 11 Pro). So the application works fine on majority of devices (included Xiaomi) but some of them don’t open the app and show an alert informing that the app stops working.

Should I buy the devices with which I have the issue to debug using USB or is there any other way to debug a specific model (ex: simulate, remote debug, external testing, logs, etc)?

Thanks for your help and your advices
Loïc