Can I use the Helvetica font offered by TinyMCE if I didn't buy the font?

Question

Fonts

There is a WordPress plugin called TinyMCE Advanced. The plugin allows you to choose Helvetica font when writing posts!
If Helvetica is a paid font and I didn't buy it for the site. Can I write with Helvetica font without problems through TinyMCE, which has this font embedded in it?

Answer 1

Do I need a license for a font when building a website?

Answer 2

In the editor, you only specify which font to use. If you do not give the font itself to the client, then what problems can there be?