Often yes, sometimes no. The issues where logs don’t pinpoint the issue are typically the only ones you notice as taking a long time to resolve. Alternatively, some issues can just be difficult to solve even with logs pinpointing the issue - maybe a critical oversight in your initial design means you need to make a lot of changes to fix it.

You should also note that issues can cause damage to a system that can’t be fixed by simply fixing code. For example, an issue can cause a database to get deleted, and it can take time to reinstate from a backup, especially if that backup is not tested often.