I changed a little my BetterTouchTool’s Touchbar setting for DT3 (see original one above): now with color (better to distinguish between apps) and with an extra “key” for OCR selected item.
Just to compare, this is the Bookends’ setting: export selected reference in several formats; send reference by email; export pdf with no annotations; quick add a reference (via DOI, etc); and autocomplete reference.
I like the current Touchbar Support. Specifically, when I edit rtf-documents, I like the quick access to text colors and bold/italic/underlined. I don’t need much more than that, keep it simple