I've had my Ficus lyrata for about four months now and I'm still figuring out the watering schedule

I've had my Ficus lyrata for about four months now and I'm still figuring out the watering schedule. It's doing okay, but I noticed the lower leaves are slowly yellowing and I'm worried I'm overwatering. I'm in a tropical climate so humidity isn't usually an issue, but I'm second-guessing myself on how often to water. Does anyone else struggle with this, or am I just overthinking it? I'd love to hear what works for your fiddle leaf fig.