U+2394 ⎔ should be the same size as U+2B23 ⬣ #108

U+2394 ⎔ should be the same size as U+2B23 ⬣ according to UTR #25:

U+2394 ⎔ SOFTWARE FUNCTION SYMBOL can be used as a horizontal white hexagon.

U+2394 is also mentioned in Table 2.5 (known as Table 5 in the revision 16 draft), where it is listed in the same size category as U+2B23 and represented with the exact same size.