How do I customize text for a Multi-line text meta field?

Been trying to tackle this issue for two weeks now and have no clue what to do. When creating a product meta-field, I chose to use a multi-line text, so I can write product descriptions unique to each product. Sadly, when typing the description, all “widgets/options” to change font, bold, italic, font size, etc are available.

It’s just blank box to input text with no customization options what’s so ever. (3rd picture), I would like to edit the font, bold, italicize, etc my text, or would love the option to do all the above for this type of multi-line meta-field situations

What can I do (or what code can I input) to make these options available. Thank you in advance!

This could be like a feature request for the coming years but for now may be you will need to add css to make changes to your text.