If u delete discord on ur phone and use your laptop to call someone through discord will the call record show on your phone?

Yes

Explanation:

When you reinstall the app, the call record will still be on the app if you used the same account. Discord keeps all calls, texts, and servers you joined regardless of the device you used it on, even if it was on your laptop instead of your phone. This will only work if you use the same account, because your account will still keep it saved.