This has been discussed many times over the last nine years, and it’s always the same answer. It’s not the protocol, it’s the sensor type. All PIR motion sensors, whether they are zigbee, Z wave, Wi-Fi, thread, or whatever are going to have the same issues.
The best solution for most home automation cases is simply to narrow the field, typically using a tube over the sensor itself. That’s hard to do with the Hue because the attached light is so big, but it’s easy on a number of the others. Here’s one photo from a community member from back in 2017:
And here’s the discussion thread that goes with it. That specific brand is no longer available, but again, the brand doesn’t matter. It’s a tube idea that reduces the number of false alerts.
Peq motion detector for outdoor, a good idea? - #13 by eric182
People have also done something similar with the rectangular sensors by using tape to block off the top and bottom of the lens, which helps avoid sky and ground false triggers.
And here’s the discussion thread on that. Again, many of those brands are no longer available, and the notification methods would be different with the current architecture, but the problem and the tape solution are common to many brands.
The other alternative is to create a zone with multiple motion sensors, and only recognize an alert when you get reports from multiple sensors at once. That’s doable, but obviously costs a lot more money since you typically need three or four sensors to cover a zone.
Camera-based sensors, particularly those that can detect people, tend to have far fewer false alerts. But again, cost more.