I find La Fee absinthe fairly dry, there’s only so much sugar you can fit into a 68% ABV spirit. Some other absinthes are definitely on the sweet side, but at least when I tried it with pastis, which is a lot sweeter than La Fee absinthe, that wasn’t actually an issue for me - Campari’s (or Cynar’s) bitterness balances it easily.
Campari and pineapple works great in the Jungle Bird, too!
Interestingly, based on the names I’d assume that the Fairy Godmother came first, but I couldn’t find any reference to it that actually mentioned when it was invented (and the blog posts I saw where from 2023), while the Fairy Sugar Mama was invented in 2014 by Andrew Mils according to Difford’s Guide.