Welcome to the forum RideShareNJ.
Yes.
The only chance you have at capturing a plate at night is if toe total difference in speed between the target car and your camera car are no larger than walking pace.
This is a limitation for all consumer cameras no matter of the price and hardware.
And there are precious little in the way of cloud backup in dashcams, some have some cloud feature but i think it is not at the level you ask ( no personal experience with these cameras )
Also often the smart cameras, are smart for a reason and it is not unknown that it is at the expense of image quality.
Also if you had to constantly stream all your footage from 3 cameras to the cloud, you will have to be in near perfect 4G territory all the time, and you would need to have close to a flat-rate data subscription, which are not exactly cheap,,,, in Denmark at least.
3 cameras would need to upload about 1200 MB / 1.2 GB data every 3 minutes, so if you could, the data level would be large.
And then come the price for a large chunk of the cloud for that footage, also not cheap as i understand it.
As for 3 channel cameras right now, the viofo A139 are what i would go for if ride share was legal in Denmark ( which it is not ) and i was into it.
But it is a conventional system with the memory card in the main unit on the windscreen, but i like that the cabin camera are also remote and so you can put it just about anywhere along the top of the windscreen.
With my test sample i had the cabin camera on the mirror stalk as this is dead center and up high in the cabin and so give the best coverage of the interior of the vehicle.
And the cabin camera have IR aid for when it is dark, but it can still be forced to stay in color mode if preferred, but then footage will be very dark in dark places and you will only get good footage when the ride enter the car while the cabin light are on.
The A139 do support wifi and a app, but nothing smart in it, just to do settings and maybe DL and share a file.
Sadly my car was broken into and my test camera vandalized so i have not yet gotten much footage up from the A139, but i did make a clip from the front 1440p camera a few days ago ( it alone and so in 60 FPS )
With all 3 cameras going they are only 30 fps.
A little footage from the front camera at night, paired with footage from my side system.
My inboxing video i made yesterday, just talking hands.
Damn cold in Denmark ATM so have not been in too much of a hurry installing the cabin and rear camera of the replacement camera, but i will get around to that soon ( you can find more viofo A139 footage on youtube )