No, those inodes still won’t clear on their own - sure, you’ll be able to prolong for a few weeks or months, but then you’ll reach a point where you’ll end up with just a single generation, and you can do nothing to clear space. The device will mislead you with free space, but they are not accessible, neither can you try to force freeing space by running disk operations manually where the stores are present - because a) that’s a bad idea and b) you’ll not have the permission to. That’s what happened to me, and I had to reinstall the entire system again.

Besides, deleting generations regularly would defeat the point of having a rollback system. Sure, for normal desktop usage, you could live with preserving the last twenty to thirty generations, but this may be detrimental for servers that requires the ability to rollback to every generation possible, or low-end platform constrained with space, and therefore, limited generations.