For a long time, I have had GrapheneOS on my Google Pixel 7 - which I don't use anymore as my main phone, but it's almost always on. It has some apps, but mainly, a constant connection to my email. No
@[email protected] I've never installed Google Services and managed just fine. Aurora Store and F-Droid work for Google Play, MS Outlook for Gmail (via IMAP) and Exchange. Apps such as Google Maps and Google Translate also work without their services.