Zettelkasten users: You're sitting in the shade in your garden, reading a good PDF... and taking notes exactly how?

[DTLow]

@jstarek

My goals would be to have the document open … while having an always-open note area where I can append my notes every fifteen minutes or so

IPads and DTTG support having two windows open: the source document and your “always-open note”
… Use multitasking - Apple Support

For taking notes, I prefer my second window to be the Notability app with an Apple Pencil
The document is shared to Devonthink when completed