Are Army FTUs(Fitness Training Unit) still a thing?

Saw some older posts mentioning if someone seems physically too weak for BCT at reception or at later phase of BCT, they go into FTUs until they can pass PT to go back to BCT with some cases being placed into FTUs after completing BCT and before AIT.

Is this a thing still? All the FTU related posts are older and there's apparently a phase recycling for people who are not good physically to go to the next phase or can't pass PT - is that the new thing instead of FTUs?