how do I encrypt my home foulder on ubuntu 20.04 after install?

I installed ubuntu 20.04 and I am trying to duel boot. So I want to encrypt my home Ubuntu fouler after install how do I do that?
according to https://www.howtogeek.com/116032/how-to-encrypt-your-home-folder-after-installing-ubuntu/ I can use the program ecryptfs-utils cryptsetup but it is not comparable with Ubuntu 20.04