Noise cancelling headphones and listen to something pleasant.

The most I see is that they could see your IP address. Not good if you are being stalked. Again I don’t think this is a very big deal. If you are worried turn on a VPN.

What could a hacker even do with your Lemmy info? Unless you are posting critical information about yourself I don’t see this as a huge issue. More of a concern for the mod and admin teams imo