「IBM Plex Sans SC」should delete all PUA fonts

[StoneChi8]

According GB18030-2022 standard and other SC fonts best practices, any Private Use Area(PUA) code point font should be deleted.
On the other hand, current "IBM Plex Sans SC" PUA 104 fonts already has standard unicode code point, also already has standard font in related code point, ie "䶮" U+E863, standard code point is U+4DAE(GB18030-2000 already encoded the 52 standard Chinese characters, in Unicode extension A).
When these fonts in PUA character and font style with the standard unicode code point, it already made font user very cofusing, and for 25 years since GB18030-2000. The most use case is, when the character use in Chinse personal name(i.e "㑇㭎䴖䶮"), which one is correct?