The all-encompassing Obsidian homepage template (at least I hope so)

Yes, I did, though I did leave the colour on, which I think was part of the issue, however, the columns are still not aligned. It works in Blue Topaz, but only if the lists are all the same length.

How do I use flex view properly?

What triggers a new column? Is it a heading, or a paragraph? or a list item?

I’m using the Minimal theme, but the same happens in the default Obsidian theme.

The untouched Homepage you kindly provide:

Col2 with two dataview queries separated by a live 3 header (Week 2 Tasks and Today +7):

Nested Admonition lists of differing lengths:

EDIT: The nested admonitions align themselves when I go to Reading Mode! However, the 2 Dataview queries (and your embedded pages) are still like in the picture (as opposed to having query 1 (Week 2 tasks) on the left, and query 2 (Today +7) on the right)

Any chance you could provide the Study Dashboard as well? It looks great!