The humidity issue IMO is often overblown. It’s really environment specific. In my old place my relative humidity was 35% so wet filament was never a problem. It’d be good to get a hygrometer to see where you’re at before you start buying fancy filament dryers or accidentally melting your spools in the oven. If your area is generally high humidity then it can help. With PLA though it’s not going to make a huge difference.