My personal checklist and research to de-google my stuff.
Main things that have been keeping me on the stock Google Pixel 3 Android OS:
|Google Service||% Migrated||Replacement Service||Remarks|
|Photos||100%||Nextcloud (self)||All Google Photos migrated, Camera Backup enabled|
|Contacts||100%||Nextcloud (self)||Automatic sync between Android and Thunderbird (desktop)|
|Calendar||100%||Nextcloud (self)||Automatic sync between Android and Thunderbird (Lightning Calendar add-on)|
|Gmail||80%||Rackspace Mail||Moved kirsle.net from GSuite to Rackspace; minimizing use of Gmail.com account WIP|
|Search||100%||DuckDuckGo||Switched to DDG a long time ago as default search provider in Firefox.|
|Maps||0%||n/a||No real competitor to Maps|
|YouTube||0%||n/a||No real competitor to YouTube|
See Self Hosting for my experiments running LineageOS without Google Services and the options for self-hosting crucial web services.
Without Google Play Services some apps won't function correctly. I need to make sure the apps that are important to me work or have workable solutions.
See also: my App Compatibility Table