How to change/update useragent without closing the browser?

Question

Python

Hello everyone, browser - chrome
It is necessary to update the user agent to mobile without closing it, but I didn’t find any information on the Internet at all.

Answer 1

I also searched for this question, but did not find the answer. Most likely nothing (using selenium)
The only thing that helped was to save cookies, close the browser, open a new one and set the same cookies.