is it legal to have free softwares like VLC and Chrome to be download directly from my website? where the user would click o the icon for VLC for example and get the installer download without having to go the website for it.
Just because software is free doesn’t mean it doesn’t come with conditions
All software is copyright and virtually none of it has entered the public domain. Therefore, the copyright owner can decide, usually through a licence, who can copy it and under what circumstances.
You need to read the licence applying to each piece of software to see if you can do this.