I use Word, save as a PDF and place the PDF as a drawing on the sheet(s) that need it. Extra step to edit and re-save if abbrev changes, but I rarely have had to edit the file. The placement of the common PDF file keeps everything the same.
If you want to create it purely in AC, create a Worksheet with your text and just place an appropriate View of that worksheet with the Drawing Tool onto the sheets / masters that need it. Linked and live at all times (unless drawing updates are set to manual).
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AC 28 USA and earlier • macOS Sequoia 15.2, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB