Looking for advice for my sad fiddle leaf fig plant…

It started to drop leaves when I realized there’s a problem. Then upon close inspection, the leaves are turning light brown with tiny little white spots..

In the beginning I thought it was just over watering might have been causing the issue. But when I inspect the roots, they look fine (no molds), might have been a bit wet but nothing mushy.

I’m worried it’s a bacterial infection.. it looks like most leaves are infected, some less serious than the others.

I’d appreciate your advice! Thanks in advance! I’ve attached photos below for your reference.