`nix profile` `flake.lock`?

Are there flake.locks for flakes installed imperatively in my profile using nix profile? I would have assumed that they exist, and running nix profile upgrade operates on them. Is this the case? If so, where are they located?

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I doubt there is an flake.lock, instead your flakes are simply build and registered as GC root in your profile.

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Ok, thank you. I guess my mental model around this is a bit fuzzy, and I had assumed the lock file was a fundamental part of how flakes work/how the version we’re currently using is tracked.