Man I had three 24 inch monitors at my old setup and I tried snapping with shortcuts for like two weeks straight. Honestly it drove me crazy because I kept losing track of which monitor was 1, 2, or 3 in Windows. I ended up putting little colored stickers on the bezels so I could remember. That helped a little but I still prefer just dragging them around manually like you said. Ngl it's way more satisfying to watch the window snap into place with your mouse than pressing a bunch of keys and hoping it lands right.
Tried keyboard snapping for a while but it never clicked for me on dual monitors. I prefer dragging windows manually so I can see exactly where they land before letting go.