No that’s not normal. 21 is indeed the newest.
F-Droid is the appstore from which you will get many FOSS (Free and Open Source Software) apps. From there you can download a browser to have internet, in Fairphone Open the browser was removed in the latest upgrade. I advise Fennec F-Droid.
You’ll also need to be connected to wifi or mobile data for this, you’ll find it in the settings under Network and Internet.
Just to be sure: were you running your phone with all google apps before or without?