How I see it? Put Windows on the SSD, it’s what I do and it’s never failed me, but take this as advice and not absolute.
To back my advice, here’s an excerpt from an article I found relating to the management of SSD space:
“Your SSD should hold your Windows system files, installed programs, and any games you're currently playing. If you have a mechanical hard drive playing wingman in your PC, it shouldstore your large media files, productivity files, and any files you access infrequently.”
Hope this helps!