I have left all google services apart from search.

email: I run my own server. After the initial "reputation building" for my domain, it now works reliably well.

calendar/files/photos/contacts: nextcloud on my home server. It's not really on par with the google offerings, but it works well enough for me. And when I need more storage I just get a 2TB usb disk off amazon.

play store: f-droid. It has everything I need. I understand that not everyone might be happy with just the apps on f-droid, but I was bored with downloading crappy games and uninstalling them after 2 minutes anyway. f-droid apps are all well done, and I trust them not to invade my privacy.