how to create this type font - https://www.abtextgenerator.com they copy and past but style maintain
You can’t create those fonts. At least you are not able to add a style. Those are not font choices but collections of special purpose glyphs that happen to look like letter (mostly for math settings). Those converters transform your text into some other unicode values and most users will be able to read that because most systems have support for those unicode ranges.