Personally I wouldn’t just for a holiday or at least not take a baby that young to a country with a lower standard of medical care than my own.
I have flown long haul with young infants and toddlers when living abroad though for visits home. I agree that the best ages are either before they are mobile (so under 6-9 months approx) and DEFINITELY before they are walking, or otherwise at least two and can be distracted by screen time.
Also travelling with a baby pre-weaning is a lot easier than trying to figure out solid food for them on the go.
On a practical basis, if considering it soon, don’t forget your baby will need her own passport and this can take time especially as young babies don’t always cooperate with the photo requirements and it might get rejected.
I’m envious of those who can happily explore the world. I’m definitely more of the mindset that holidays with baby are just trying to improvise your own routine/equipment etc in a strange place!
Have you already stayed with the baby for a weekend anywhere other than your own hone? If not, give it a trial run in a hotel or a relative’s house. You’ll quickly find out whether you are the improvising type who cheerfully gets on with it, or whether you are swiftly wishing you were home with your own nappy-changing station etc!
One last thing. Get the absolute best travel insurance you can afford for all of you.