You still have time. Bought gifts for 2023 and 2024 for the whole family. This is fun!!!
Would it make sense to be concerned that i-bonds will be less attractive than other fixed income assets in the near term?
I'd think that you're good with loading up on i-bonds since you'll get 9.6% for Oct'22-Mar'23 and ~6% for Apr-Sep'23. The uncertainty is just for Oct'23+, but you can cash out of your i-bond positions in Jan'24 if the prevailing rates make them unattractive.