Shout out to Flickr! No matter how many gigabytes you had uploaded, you can still access them. You just can’t upload more without a Flickr Pro plan.
Is this still true? I am a Flickr Pro user and the few times I've let my subscription lapse, I recall that I could only see my most recent 200 uploaded photos until I paid up again. They didn't delete them, for sure! But they were inaccessible.
No, because I am dealing with this right now. I stopped paying for Flickr Pro after 20+ years and can only download my photos in bulk as 1024px resolution in order to get back under the free plan limits unless I pay for Flickr Pro… which is $82/year. My photos are held hostage unless I pay.