We're reaching the end of an era wherein billions of dollars of investor money was shovelled into tech startups to build large user-bases, and now those companies (now monoliths) are beginning to constrict their user-bases and squeeze for every single penny they can possibly extract. Fair or not.
Now more than ever, it's important for us to step back and reconsider whether we want to be billboards for these companies anymore.
For anyone unfamiliar, some good resources to have when starting your degoogling journey are below:
Privacy Guides - A list of privacy-respecting services you can use.
Plexus - A crowdsourced information bank of service compatibility with degoogled devices.
This random PDF - A study from 2018 detailing data that Google tracks about its' users.
Google still runs a good chunk of my life and some of it I know I could use some of the great alternatives that others have mentioned but some of it I'm not really sure about.
Namely:
Maps
Messenger (web browser access to my texts)
Contact sync and backup
Google voice
And all the various services that let my phone operate...
For Maps there's an alternative on FDroid called GMaps WV which is actually just the Google Maps website wrapped in a tiny webview app. It can't spy on you if you run it that way.
Or you can install Hermit and add Google Maps as one of its sandboxed light apps.
If you're interested in things that aren't Google Maps you can look at OSMAnd, a great app with tons of features and my go-to app when traveling because you can download offline maps and info about local stores, restaurants, attractions etc.
On the lightweight side there's Map Marker which can use map tiles from a dozen different map services, and you can place markers on the map and group them in collections.
Right, I can't use my phone without it and I'm not buying into Apple. I also really like the user reviews on Maps, it's like Yelp and TripAdvisor before they both fell to enshttification. I've also got a Voice number that I pay nothing for and I give it out when businesses demand a phone number. I don't see myself switching to anything else for those.
I was thinking about it; Google offers a number of useful services, and I realise the hardest to get out of will be Maps. I can sort of replace the others with workarounds (Photos will probably be the second hardest to move from), but Maps, there's nothing good enough to replace it for me as far as I can tell.
You can if you have the right phone, namely pixels. Ironic because its the Google phone, but the Pixel line has the most custom firmware development.
LineageOS for a more stock version of a de-googled ROM. Works on a number of Android devices.
GrapheneOS for a completely de-googled firmware that is tailored for privacy. Snowden said if he were to use a phone it'd be a Pixel running Graphene. Only works with Pixel.