I would point out you use Google everyday merely by using your phone. Android is Google.
I’m sorry the help document I referenced didn’t address your specific scenario, however, I ask that you keep in mind here we are customers doing our best to help other customers. Calling something someone took the time to point to useless doesn’t necessarily inspire folks to want to help further. Anyway, here’s how to export contacts to an SD card on Android 8.0 as tested on my Moto G6 Play running Oreo:
- Open Contacts.
- Tap Menu (three stacked lines upper left).
- Tap Settings.
- Under Manage contacts, tap Export.
- Select the account from which you wish to export contacts, then tap Export to .vcf file.
- From the resulting Downloads screen, again tap Menu (three stacked lines upper left).
- Select your SD card.
- Tap Save lower right.
If you ask me it would be much easier to use Google or another cloud service.