Most if not all Tape Wound Strings offered by Daddario, Fender, Labella etc. are roundwounds with nylon or other materials on top of it. Nothing new or revolutionary. The coating does influence the sound, more or less. The strings that are "coated" and really sound like rounds but feel a bit like flats are the Elixir strings.
Why do you ask this question? Is it about the feel?
(If I have ignored a new revolution in string making and those MM-strings are really something new, pardon me!)
I play flatwounds on my main basses. The reason that I play tapewound strings, too, is that I like the feel, they sound a bit like flatwounds/upright strings but have more highs and they don't die within weeks as roundwounds do and then just sound horrible and dead.
I have Elixir strings on my Stingray and love them, because they really sound like roundwounds, are basically roundwounds 'cause the coating is very thin and they last for months.
A disadvantage of Tape Wound Strings: your hands don't touch the metal, so if your bass buzzes, it doesn't stop if you touch the strings!
Tapewounds: