Edit 1 :
If you’re fed up with companies fucking you over there’s an alternative.
There software called Nextcloud which you can run on a server which works in comparable ways as Onedrive/Google Drive/Dropbox/etc. works.
You could host it yourself on a server if you know how.
If you’re not familiar with forwarding ports or setting static IP adresses you can rent some server space from Hetzner where Nextcloud is included.
Edit 2 :
I’m totally in favor with your post, but not everyone is willing to self-host or is capable of doing it. So I recommendation would be and one that I’m currently using, is when uploading a file to these cloud services encrypt your files. I’m using #cryptomator, but I’m sure there are other alternatives, like #rclone. There is also #veracrypt, but to my understanding, is not great for cloud sync.
Cryptomator official website Quick youtube video in how to use cryptomator (3:51)
Cryptomator is open source and free, but only on desktop. To use the mobile version, you will have to pay. Here is a list of alternatives to cryptomator, if you are familiar with one, please share your knowledge.
Edit 3 :
Don’t forget Syncthing, I always suggest it first since it doesn’t require a server or advanced knowledge to work.
With Nextcloud, when you, install maps, the location logging app, uploads your photos, you can see your life laid out over a time access. It’s scary it you normally give all that to say Google or Apple.
Surprised people turn on location data
If it’s only to your own servers, it is much less of an issue. Use Firefox and it will ask your permission if a site requests it.