We now believe that this character is identical to 𢂞 (U+2209E), Vietnamese "bố". Both have a semantic overlap meaning "father" and the source glyph for U+2209E seen in "Giúp đọc Nôm và Hán Việt" shown below has the same semantic and phonetic, ⿱父布. We propose to unify, changing the glyph for U+2209E to this.

The T-source character for U+2209E seems to be a variant of 希 xī, so not cognate with the Vietnam character ⿱父布. Therefore unification is not appropriate. Suggest to keep this character in WS2021, and remove the V-source reference (VN-2209E) from U+2209E.

The same character also found in Zhuang:

As a supplement to #9436, the head-character for the link that #9436 shows is ⿱爻巾 instead of ⿱爻布, but evidence in 補充資料 > 異體字表 shows ⿱爻布 ~ 希 (03511). Using 異體字表 as its reference, CNS 11643 website for T6-305A also considers 𢂞 ~ 希.

To consider 𢂞 simply as a variant of 希, and to consider ⿱父布 as a non-cognate character is better. As the evidence given in #9435 shows ⿱父布 instead of ⿱爻布, VU-2209E may need to be unified to WS2021-02285.