How Could We Create A Link To Add All Categories In It ?

Hello, I hope you all fine..

I have a lot of categories in my website ( I put them all under one title in main menu cold Products) , so I want to find any way to enable customers when they click on Product ( which in main menu ) to see all categories...

I have found a solution but I think there is a better one.. My solution is: I have add the whole categories under one category and named it ( categories ) and add the URL of this page to the ( Product which is in main menu ) so when any one click on Product in menu the whole categories appear but also the whole Products appear too but I do not want products to appear in this page I want categories only..

So if any one can help in this situation I will appreciate that .