Can GIMP export in tif format without aplha channel?

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A little more experimentation produced some results I found interesting.

Decided to see what happens when a multi-layer image is exported, in tif format, with Save Layers specified (up to now I've been unchecking this option).  Found the following:

• Some other viewers/editors only display (?recognize) the bottom layer.  This particularly includes Rawtherapee.
  
• Windows 10 Photo Viewer displays all layers but as separate pages.
  
• When opened by GIMP all layers appear to be recreated accurately (although I've yet to try further editing on such a file).
  
• File is still unrecognizable by Canon DPP4.
  

I've been saving my GIMP work in xcf files, which typically cannot be viewed by other software, and don't yet see any reason to save it in tif format.  At the same time I can see how this capability could be useful to others.  However, it also suggests that my intuitive rationale for unchecking the Save Layers option was quite valid and that for my purposes that should be the proper choice.