Newbie installation of rpm files goes wrong

I downloaded Chrome to the Google Store. Was linked there by the cloud service.
But, found the following link instead:

which turned out to work?
“It is important to search properly before making posts”.
Installed the cloud service extension, but it now shows as it says it may be damaged. There is a button to repair it, nor to update it. But it did’nt help. So there I am now.