I don’t know about you, but I never, want to paste something into a fresh document AND carry across its original formatting. I always want to paste and remove the format. On both the Mac and Windows, there’s a keyboard shortcut that will allow you to do that. Unfortunately, that keyboard shortcut is not simple to do.
On a Macintosh, to paste without formatting (i.e. as plain text), hold down Shift + Option + Command and hit V. It’s a tricky keyboard combo to master but with a little practice you’ll get used to it.
On Windows, in most versions of recent Windows versions, Ctrl + Windows Key + V also pastes text as plain text. All you have to do is to relearn these command sequences as your standard paste command. If you do that, you’ll always be getting text only without the added format.