adblock is a program that blocks ads
Hosts file is a file with lines in it that tell your computer not to go to certain sites. This blocks advertisements. Hosts file is a file that uses zero resources.
Why would you use an adblock when you can just block a site manually and prevent your computer from connecting to said site?
Go search for mvps hosts file and download it and replace your hosts file with the one they offer. It’s free, it’s quick and it doesn’t use any processes to use it.
Plus their hosts file is updated often.try it. You can also block your roommate’s favorite sites from your computer so he/she won’t use your computer.