Yes I agree, but I'm guessing this is more a wish for the TM developers than Archicad

My curent way of doing this is to set a graphical override when transferring to TM. This way, I have "proxy" objects in AC, and after syncing to TM I can hide them by selecting the override material. It's not perfect, but its a doable workaround for now.
AC25
// Ryzen 2700x | GTX 1660ti
// MBP M1 Pro
// UE5.1 | Twinmotion | Corona | Rhino
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