I assume you are referring to the words 𝐁𝐚𝐫𝐛𝐚𝐫𝐚 𝐑𝐚𝐮𝐜𝐜𝐢 "𝘊𝘩𝘪𝘦𝘳𝘪𝘤𝘪, 𝘴𝘱𝘦𝘳𝘪𝘮𝘦𝘯𝘵𝘢𝘵𝘰𝘳𝘪, 𝘳𝘪𝘷𝘰𝘭𝘶𝘻𝘪𝘰𝘯𝘢𝘳𝘪" ?

As you can see I have been able to copy and paste the words here using the same "styles". This is because those particular words are in unicode text format, not in a standard latin ISO 8859-1 character set.

To remove those styles, you would need to rewrite the text.

[quotePost id="112716"]Thanks you. Is there an option to clean/convert them when user uses copy/paste? Something like “remove span”.[/quotePost]

No. Although it is technically possible to do, it is not feasible, as there is no simple way to convert the unicode text into standard ISO 8859-1 characters, without the use of a very large and complex table of mapped values.