My dad needs a laptop for Zoom meetings. He wants no lag and laptop speakers which are loud enough. What will you recommend?

I would recommend getting the latest M1 Macbook air. Amazing performance as compared to other windows laptops with intel chip at the same price range, and Macbooks are known for its durability as well!

I think you could look at microsoft surface laptops or other microsoft laptops. Dell is pretty decent too. Macbook air is pretty usable and has fairly decent speakers. If you want something on the higher end perhaps you could look at a macbook pro. Hope that helps!