Just because the specific ALPR technology was not being litigated doesn't mean that the law doesn't apply to similar technologies. At issue here is the government being able to monitor and track people in public, not that photographs are ok because individuals can take them at will.

> A person does not surrender all Fourth Amendment protection by venturing into the public sphere. To the contrary, “what [one] seeks to preserve as private, even in an area accessible to the public, may be constitutionally protected.” Katz, 389 U. S., at 351–352. A majority of this Court has already recognized that individuals have a reasonable expectation of privacy in the whole of their physical movements. Jones, 565 U. S., at 430 (Alito, J., concurring in judgment); id., at 415 (Sotomayor, J., concurring). Prior to the digital age, law enforcement might have pursued a suspect for a brief stretch, but doing so “for any extended period of time was difficult and costly and therefore rarely undertaken.” Id., at 429 (opinion of Alito, J.). For that reason, “society’s expectation has been that law enforcement agents and others would not—and indeed, in the main, simply could not—secretly monitor and catalogue every single movement of an individual’s car for a very long period.” Id., at 430.

https://www.law.cornell.edu/supremecourt/text/16-402

Edit for your edit: you haven't refuted anything man, you keep trotting out the same arguments in those linked threads:

- The data includes "private movements" which is why it's unconstitutional (the SC said aggregation of public data can impel privacy concerns)

- An individual or LE can take a photograph of you or your house, therefore collecting photographs from geolocated cameras and tracking you over time is not constitutionally distinct (but it is)

- The specific technology at the center of these cases are not ALPRs, therefore the rulings have no bearing on Flock (despite the fact that courts are not litigating the specific technology, but rather the constitutional principles of their use)

> The data includes "private movements" which is why it's unconstitutional (the SC said aggregation of public data can impel privacy concerns)

But does it? You keep insisting this is the case, but your attempts to back up this claim are cases with totally different scenarios. Namely demanding that telecoms hand over location information.

> - An individual or LE can take a photograph of you or your house, therefore collecting photographs from geolocated cameras and tracking you over time is not constitutionally distinct (but it is)

The point is to emphasize that the information collected by Flock is in plain view. The plain view doctrine is well established. The police don't need a warrant to observe publicly visible things.

> The specific technology at the center of these cases are not ALPRs, therefore the rulings have no bearing on Flock (despite the fact that courts are not litigating the specific technology, but rather the constitutional principles of their use)

The cases you've cited all involved private information being obtained without a warrant. You can't just ignore the fact that a GPS tracker or cell phone location information also reveals private movements, as opposed to public facing camera which only record public activity.

Again, you keep citing decisions without bothering to understand the context behind the. For instance,

"To the contrary, “what [one] seeks to preserve as private, even in an area accessible to the public, may be constitutionally protected.” Katz, 389 U. S., at 351–352. A majority of this Court has already recognized that individuals have a reasonable expectation of privacy in the whole of their physical movements. Jones, 565 U. S., at 430 (Alito, J., concurring in judgment);"

This is about the police planting a GPS tracker on someone's car - that's that "Jones" is referring to here. That case involved the police tracking someone in public and in private.