How to choose a different font in LaTeX?

Question

TeX

It is required to use Times New er Roman font for the entire document.
The PdfLaTex compiler and the TeXStudio program are used.
Please advise how this can be done. I did not find anything sensible that would help

Answer 1

Something like this:

\usepackage{fontspec}
\setmainfont{Calibri}

Answer 2

\documentclass{article}
\usepackage{fontspec}
\usepackage{polyglossia}
\setdefaultlanguage{russian}
\setmainfont{Times New Roman}

\begin{document}
Проба пера.
\end{document}

More or less like this. And use XeLaTeX.