I am not sure if that's true for non-fixed-maturity funds because the fund manager will keep the ladder rolling after 5-7 years, ie. the fund won't just pay out at maturity - they will keep reinvesting further and further into the future.
There are some bond funds called fixed-maturity funds that actually mature on a date and pay back the principal. Ie. they let all the bonds inside mature without reinvesting them. iShares iBonds are an example. But this is not the norm for bond funds.
There are some bond funds called fixed-maturity funds that actually mature on a date and pay back the principal. Ie. they let all the bonds inside mature without reinvesting them. iShares iBonds are an example. But this is not the norm for bond funds.