Do you wish something better existed?
You can set up a watch with sharing  so you can monitor your elder family members health stats on your own device. Plus if there's anything you see that's strange, you can call them, and they can answer you on their watch.
If your use case is different, it’s easy to action off of door sensors, geofencing of their phone, or similar.
Snug is available for Android (Google Play) and iOS (iPhone only).
Disclaimer: I currently work on Snug Safety. Please send any questions to firstname.lastname@example.org and we'll definitely be able to answer them.
For a bedridden family member and monitoring thereof, I use the doorbell transmitter unit on the Oxygen generator alarm, the sound alert unit as the panic button for my elder that is bed-ridden. And another sound alert for the gastrointestinal feeding unit. And another for pressure plate under bed mattress (out-of-bed) indication.
While I did do many researches on medical devices and it’s output sensors, I’ve yet to find a suitable bridge unit for medical devices toward the Home Alert or Alexa unit, those are still used separately as well for “simple” outbound phone calls.
I also placed many Silent Call Medallion receiver units with flashing strobe lights , vibrators, and buzzers in strategic floors and rooms. And jerry-rigged one of the receiver unit to a Raspberry Pi unit which in turn sends SMS/Text messages to our phone over network.
For webcam, I’m forced to use cloud-solution (China) as few reliable self-hosting exist but it’s simple and has a privacy PIN. Y! Home and Wiz app were installed but rarely used because it should be compassionate human nature that you should be walking past that bedridden family member as often as you go to the bathroom, there’s no substitute for human touch.
This household is a mostly Deaf family unit hence the extra overboard for sensors and alerting. Peace of mind is immense once installed.
Disclaimer: I’m a hobbyist who tweaks PCB and repurpose them for fun. Very little commercial product for such complete setup of mine exist out there due to strict Federal regulations on medical devices, you must roll your own.
The one thing which i would really really like is to have a Computer Vision ML system which can detect changes in demeanour eg. face discoloration(lack of blood flow), droopy eyes, tremors in hands, unsteadiness on feet, greater than usual stooping etc. I am the sole caretaker for an elderly parent and am always looking out for these (and other) external markers. The key to elderly care is constant monitoring to anticipate and forestall problems.
I know they setup a bed sensor that would report when they got out of bed each day. A simple metric for basic okay-ness.