Answer 1

- go to fonts.google.com
- select a font
-click select this style
- copy this:
<link href="https://fonts.googleapis.com/css2?family=<FONT_FAMILY>:wght@<FONT_WEIGHT_IN_PIXELS>&display=swap" rel="stylesheet">
-insert that in the head element of your html
-copy this:
font-family: '<FONT_FAMILY>',<ALTERNATIVE_FONTS;
-insert it as a css rule to any element
Now enjoy your font

Answer 2

https://www.w3schools.com/howto/howto_google_fonts.asp

https://www.sololearn.com/Discuss/980763/?ref=app

Answer 3

https://youtu.be/2kH9grvS5ao