Recently bought a 14TB HDD and downloaded my entire Dropbox, Google Photos, and Lightroom photos. Planning to set up an off-site copy as well, and will probably build out a proper NAS within a few years.
If you don't want to self host (which has actually become quite simple with immich), you could switch providers (even if you want to avoid google).
The latter is a huge reason companies strive to establish "platforms" and suites of connected apps - even if competition is cheaper/better in a vacuum, it still may not be worth the effort to switch if you're already established within an ecosystem. The goal is vendor lock-in even if they're not holding your data hostage (though they might do that too).
