There is something so freeing for me about getting my calendars working on @GrapheneOS today. I started using #Google apps because it was "easy." Easy to integrate email, calendar, contacts, phone, files...but that "easy" has a cost.
To be clear, it's nowhere near as easy to do with the #FOSS tools available. I'm not going to kid anybody. You have to know more about what you're doing, how it works, and why. That's not ideal if we want to help the #AverageJoe take back control of their private data. But it can be done.
I'm taking new steps today to deGoogle my life. I may be connecting back to Google based calendars right now, associated with Google email addresses, but my next step is to give @nextcloud a try.
Every little bit helps.
(And no, I'm not paid to say any of this)