Thanks again for all of your earlier comments and suggestion.
I found a solution this morning that works well and was easy to install: Windows Terminal.
Windows Terminal is a new, modern, feature-rich, productive terminal application for command-line users. It includes many of the features most frequently requested by the Windows command-line community including support for tabs, rich text, globalization, configurability, theming & styling, and more.
Upon installing Terminal and running Julia inside it, the REPL is clearly rendered, and the fonts, including the package mode fonts, are easily readable.