Don’t you get annoyed when you click on a Mega.co.nz file link and you get redirected to annoying App for Mega? A lot of websites these days do this in order to get people to install their official mobile app. I find that annoying as I don’t want to fill my phone up with tons of unnecessary apps.
To download files from Mega.co.nz links, you need to check “request desktop site” from the settings menu which can be found in the top right corner (3 dots). You need to do this on the original page that you were on, and not the Mega.co.nz download page as that will just redirect you. You can turn on desktop mode on any page you want like Google.com. After you do this, you can click on any Mega.co.nz link and you will be offered an option to download via browser. It will say that browser download is slow, but don’t believe that.