So I take that to mean that an EASA PPL with FI or CRI can freelance
Yes, they can conduct training with a current licence holder i.e the dual flight with an instructor and differences training but; all training for a licence or rating, including renewal, must be conducted at an ATO.
Is it correct that the holder of a UK PPL(A) using a recent ANO amendment can now undertake a FI's course
A PPL holder has always been able to undergo an FI Course; a PPL holder may now be remunerated for instruction and in addition, teach for the LAPL without having to demonstrate CPL level knowledge however; hours taught by an FI without CPL knowledge, will not count towards a PPL, unless all training for the LAPL has been completed. The latter is likely to affect their employability at any ATO other than those primarily conducting training for the LAPL.