is it ok to download Google Chrome?

There is nothing wrong with downloading an additional browser. Be it Chrome or even firefox.

Once downloaded, you will have a DMG file in your Downloads folder. You will have to double click the dmg file to start the installation of Chrome. It will just request you Drag the Chrome icon into the Applications folder.

Once that is done, Chrome will available in your Application folder in Finder. You can open it from there, or from the Launchpad icon on your dock.

You can also drag it from the Applications folder to the dock if you want a shortcut on the dock.

I would not.

It has been my experience that Google things and Apple things sometimes do not play well together. As you know, they are competitors.

I use Firefox. It does a good job of blocking most ads and can help you download legal videos.

Its silly to think Google would make and offer a browser for a system where it won't work well. Google may be a competitor but its exactly that reason why they would want to make sure their software works otherwise you won't want to use it, and they want you to use it. There's no gain for them if you don't use it.

For the record I've never had issues with Google Chrome on a Mac. It works perfectly fine.

Google Chrome will not run on Snow Leopard. It requires Mountain Lion as a minimum.

Apparently Google disagrees:

https://support.google.com/chrome/answer/95346?hl=en

It does require an Intel Mac though.

You are correct!

But I don't like all the many conditions attached to its use and won't install it.