As a character, unified to 𠫓 (U+20AD3).
As a component, appear in component list collected by CESI, with examples 夣棄育.

Useful component. The difference is major for this kind of simple characters.

一、
1，⿱亠厶 is neither an erroneous form nor an accidental occurrence, but a legitimate and established character component in G-Source，e.g. 㐬育充棄夣𰮑。
2，During TANG dynasty，to circumvent naming taboos，"世" as component was usually replaced by this component，e.g. 枼→𣏋、喋→𠴬、構→𭫐→𣕛.
3, so 𠫓 (U+20AD3) cannot clearly illustrate the structural relationship between the component and derivative characters, hindering accurate philological explanations.
（1）張涌泉 主編； 審訂：《敦煌經部文獻合集·小學類訓詁之屬》，中華書局，2008年8月，第1版，第3615頁：
又甲卷、乙卷凡‘世’形構件多諱改作‘云’或‘󶯳’（參看校記〔一七五〕、〔三二五〕、〔四○○〕、〔六一七〕、〔六八三〕），又改作‘曳’（參看校記〔三七〕、〔四五九〕、〔五○五〕），幾無例外；甚至連與‘世’相近的偏旁也有諱改的（如男服部‘𦂌皮𦂌也。博講反’，注文‘講’字右上部甲卷作‘󶯳’形，即應係避唐諱改寫。

(2) 張涌泉 主編； 審訂：《敦煌經部文獻合集·小學類字書之屬·開蒙要訓　》，中華書局，2008年8月，第1版，第4086頁


二、
1，In literature, it's describedas "上作點" and contrasted with the character "云" (yún) or 𠫓 (U+20AD3)
（1）［民國］中華教育界社 編：《中華教育界 第二十二卷第十期·請教育部頒發漢字注音用及獨立用之注音符號兩種字模印刷體式辦法案·獨立用之注音符號印刷體式辦法》，中華書局，1935年4月，第1版，第102頁：

（2）湯可敬 譯注：《説文解字·卷二十八·528　𠫓》，中華書局，2018年06月，第1版，第3200頁

（3）湯可敬 譯注：《説文解字·卷二十八·528　𠫓》，中華書局，2018年06月，第1版，第3199頁

三、
Even if unification was adopted by J-source (Japanese) standards, it does not mean that G-source should adopt it. A more appropriate approach is to encode ⿱亠厶 separately, and unify 𠫓 (U+20AD3) in J-source to ⿱亠厶.

Agree with #8669

With regard to the proposed disunification of J4-2359 (JIS X 0213 Level 4) at U+20AD3, Japan has historically rejected proposals that involve moving sources that correspond to their primary standards, specifically JIS X 0208 and JIS X 0213. Even if Japan were to accept the proposal, they would not take any action until this IRG working set is standardized as a new CJK Unified Ideographs extension block, which is at least three years from now.

In addition, both forms are present in the Moji_Joho IVD collection, meaning Japan is treating these as a unifiable pair:

Also see MJ031960 and MJ031959.