I can’t wait to graduate college so I can stop using my Google account. I still have to use mine for the online office suite. I use LibreOffice if it’s just me but I have to collaborate and do group assignments on Google Docs and Slides too.
If you REALLY need it, I’ve seen some people recommend ClamAV but really, I don’t like the concept of antiviruses. They run with I’m assuming full access to your storage and generally bog down your system performance. IMO, the best line of defense for your system is you. Use your common sense, stray clear of the shady websites, stick to well known and safe recommendations (especially relevant since you sail the high seas) and don’t run random commands from the internet.
I’d get the Pixel because of the long, not to mention timely software updates and security patches, better hardware and GrapheneOS. If you do get the Fairphone, use DivestOS. See this comparison