I am using the short cut “Strg + Shift + V” (instead of “Strg + V”) to insert unformatted text from a word document/a google document/other text apps …
Usually the added shift key is deleting the word document formatting completely and also other not human readable added characters.
Another work around, like mentioned above, is to copy the text in a plain text editor programm and copy it again from there.
In my trainings with clients I am teaching always the “Strg + Shift + V” shortcut and explain them why they should use this one and avoid the more common “Strg + V”.