How to avoid PayPal Chargebacks?

PayPal chargebacks seem to be a recurring problem and one that makes an otherwise acceptable payment processor unusable.

Consulting PayPal docs we get:

There are several things you can do to prevent disputes and chargebacks from happening in the first place:

Provide contact information.

Buyers may not resort to a dispute or chargeback if they can talk to you about the issue. Provide an email address or phone number, or even call buyers in advance when you're selling higher-priced items.

Ref: https://www.paypal.com/tc/webapps/mpp/security/disputes-chargebacks

So does that work ?

Does anyone have direct experience of that being the case ?

Thanks!