Another option is install gnome-software,
$ sudo dnf install gnome-software
Then install the google-chrome third-party repository,
- Open gnome-software
- Open the application menu (Super+F10 on gnome desktop), since you are on fedora-kde-spin , click on the top left corner icon and select "Software Repositories".
- On the pop-up windows enable "Third Party Repositories", then close the windows.
- Open the application menu and select "Software Repositories" again.
- Now enable "google-chrome" repository, close the windows.
- Now click on the magnifying glass, then type chrome, if you have problems searching chrome close the app and reopen it.
- Then install "Chrome browser".

By command line
Enable the third party repositories
$ sudo dnf install fedora-workstation-repositories
Then enable google-chrome (repo id) repository, remember the repo-id not the repo-name that is a tiny mistake in the previous link, but you can check the documentation, if you don't know the repo id run
$ dnf repolist disabled
first.
$ sudo dnf config-manager --set-enabled google-chrome
Then install google-chrome-stable (package name)
$ sudo dnf install goole-chrome-stable
If Chromium is good enough for you, all you need is sudo dnf install chromium
I recommend using Chromium or Firefox instead. Both provide more privacy compared to Google Chrome. Firefox is technically more advanced, faster and less resource hungry.