I never owned a web camera until I bought my first one from Reolink. I think their App and Client software are very good and I have no problems downloading and viewing video. Software has good versatility and allows you to view and download video at different resolutions.
They offer a 30-day money back guarantee, two-year warrant, and free shipping. I got an additional six months of warranty by registering within 30 days of purchase. Look at their deals and flash sales.
I started out with their RCL-511W 5MP Dual-Band WiFi Security Camera and loved the video quality. But it requires power and the motion detection isn’t very good because it does a frame-by-frame compassion and gets confused by changing light conditions like sunlight/car lights and at night by bugs and dust particles. Love everything about this camera except the motion detection.
So, I purchase an Argus 2 which meets your requirements of solar/battery powered and wireless. The motion detection is passive infra-red (PIR) and works like most outdoor motion detection lights but the detection range is less than the 30 feet they claim. Since its battery powered its off until it detects motion and it takes a second before it starts recording. It doesn’t take much sunlight to recharge the battery. It has good versatility and will probably to most of the things you want it to do.
I've been very happy with my Reolink cameras. I've had the RCL-511W for a year without problems with my Minnesota winters. I bought the battery powered Argus 2 this spring so it hasn't had a chance to go though our winters yet.
Argus 2 recording:
https://www.dropbox.com/s/eftrl95qo8q51b5/11_12_21%20-%20Buck%20Side%20Yard.mp4?dl=0Night video of my Argus 2 and RCL-511W cameras. Starts with the Argus 2 and switches to the RCL-511W.
https://www.dropbox.com/s/h6e18h1jzilomu8/2021_11_22%20-%20Deer%20Side%20%26%20Front%20Yards.mp4?dl=0