Export option Add To Stack not available when exporting from a smart collection

It should be noted that in another thread where this was first brought up the OP discovered that ADD TO STACK does work if you use an Export Preset that has the option enabled.  This ONLY works if you use the Right Click Context Export dropdown and choose one of the Export Presets.  This works so there is no reason to not allow it in the Export Dialog.

"this does not occur if you are in a folder. Just when you are in a collection."

Add To Stack is allowed when in a regular collection, in which case the stack is created in the folder, not the collection.  But it isn't allowed in a smart collection, indicating there isn't a valid desgin reason for this restriction.

I was going to say that Adobe will probably come back at state "As Designed" And to not be surprised that a monitor will move this post to Discussions. BUT, as stated by the Author, this only occurs in Smart Collections, not in normal collections.

And I can repeat it (Windows 11 in  my case)

Does any member have a different experience, perhaps a member with say LrC v12 running?