Thankfully Immich is protected against rugpulls (i.e. becoming proprietary) by virtue of it not requiring a Contributor License Agreement (CLA), so FUTO doesn't even own the copyrights to the code. Therefore, if anyone is suspicious of FUTO's influence over the project, they can simply fork it (and I imagine someone will)

But if you have something doing face detection I would hope it's stored locally and not sent to a "cloud" no matter who runs it.

Multiple people have said that, yeah. But they also said that he did not particularly distance himself from the project, which is definitely something I would do, if I found out about this kind of backing.