Frightened

While the source of fear is within line of sight, your ability checks and attack rolls have Disadvantage. You cannot willingly move closer to that source, even when it is out of sight.

Duration and overlapping effects

The effect that caused the condition determines its duration, removal, and any saving throws. If several effects impose the same condition, track each duration; its effects do not grow stronger merely because it was imposed more than once. Other conditions can still apply at the same time.

Source: supplied Player’s Handbook (2024), Rules Glossary. Paraphrased quick reference; specific rules can override these general rules.