I do my best

I used an iPhone without using iCloud. But, I just switched to GrapheneOS.

i use neither

Never used iCloud, always running out of space

yes, but only because I don’t have a Mac. Otherwise I would use it but with the Advanced Data Protection

Never! Don’t want any data in a cloud

Self hosted Nextcloud user here. Provides most data services you'd need. Use Immich for photo/video.