I'm seeing this with models upgraded from 2020 to 2022 on ACC. Random annotation families, dimension styles, text styles or families now have a blank value for text font. It may appear normal at first depending on how affected the file is, but some text prints and appears on screen differently. Instead of our standard Arial, it may show as Wingdings or another font even though the font value is blank. This is dependent on what computer is being used. I've seen three screens of the same Revit view appearing differently.
Arial is installed on all the machines, this glitch seems triggered by the Revit upgrade removing the assigned font style, then leaving it to chance what font really appears. I've been manually updating the missing font values as I find them.