Time and Space
(Schneider-Kreuznach APO-Symmar 150mm f/5.6, 4x5in Ilford HP5 film, Linhof Technika)
A photo speaks more than a thousand words
😀
Your post before could have easily understood as a Leica rant, but backing it with this beauty of bokeh makes your point clear.
I fear though, the issue with bokeh is not a Leica made one, but generally a smaller format issue.
Only when one goes the efforts, to use the fastest of lenses or specific designs, that make background smooth, like the latest ASPH 50/1.4, 75/2 or, as you stated certain slower lenses (a 135/3.4 APO can do real magic in this regard), you will get smooth bokeh, as you like.
For some though, certain specialty lenses have something going for them for their crazy bokeh (take the 50/1.5 Summarit for example or in a milder dose the 50/2 Summitar, …).
I love the Leica stuff, but in regards of truly outstanding background rendering, it is limited to certain special lenses (unfortunately those are getting costly nowadays) or to move to a larger film format entirely.
But then again, isn't it sometimes the flaws, that we feel so dearly about something, that makes them unique and special ;-) ?