That's nonsense. I've been using MbedTLS for years now in lots of FLOSS projects, and it's biggest mistake was forcing that terrible and buggy PSA API (a mandatory git module in MbedTLS which does not even compile without dirty hacks (*)).
Now they are saying that MbedTLS is going to be discontinued and only the shitty PSA remains? They have lost their minds, time to look for another Open Source alternative, I'm afraid. :-(
(*) - after days of debugging, I've found that an uninitalized variable bug in psa_crypto_mac.c prevents my https client to download files from codeberg. I had to apply a patch to make it work: https://codeberg.org/bzt/ludus/src/branch/main/src/lib/mbedt... That's how "great" PSA is.