I'm just sense checking this. My DD has 3 godparents. (She's an adult now by the way.) Two are brilliant, remember her birthday and Christmas, ask after her etc etc and sometimes message her. Neither lives near us.
The other godparent, who was a very close friend of mine at the time, does nothing. She's not sent a birthday card to DD for years and years, doesn't remember my birthday, hardly keeps in touch and I find it quite hurtful. She lives very long-distance from us. I've known her for 40 years.
I don't have much to compare with as my mum chose 'elderly friends' to be my godparents and they died when I was in my teens. They always remembered birthdays and Xmas, with a card and sometimes money. I used to send cards and 'thank you letters' to them.
I'm no longer into the religious aspect of being a godparent but I chose friends who I assumed would be a 'special friend' to DD and show some interest.
I'm a godparent and always send my godchild cards, presents, talk to her mum regularly about what they're up to (they now live overseas) and GD sends me cards and gifts too.