Hate if you're gonna hate, but I installed 3 Ring cameras with batteries and solar chargers for a lady recently. And the battery doorbell 3 plus. They are connected to an Eero Pro system (all are hardwired). I was impressed with how well they work. The solar keeps the cameras charged so no need to take batteries out to charge them. Image quality is dang good. Notifications are quick and accurate. For the $, they get the job done and then some.
It sucks that these seem like a better solution than the "pro" systems we are used to installing. I'm on the hunt for a good value for money camera/recorder solution. Synology seems to be pretty dang good on the hardware/UI side. And pretty camera agnostic. Might have to give it another go. I did a customer solid solution with 2 cameras on a Synology NAS and or was pretty good. They have made a lot of improvements in the software/app since then.
"When I eat, it is the food that is scared." - Ron Swanson