This is exactly what I experienced when doing a test for another user in a different topic:
You’re totally right about that, and I think each environment is going to be different and will require some trial and error to achieve the desired effect. I’m speculating that a stationary camera with the right combination of Detection Zone and Motion Detection Sensitivity settings might be able to ignore the pixel/light changes or that a “4-minute on” Action might work inside the 5-minute cooldown period (for users who aren’t subscribers), but I haven’t tested these things. The testing I was doing yesterday involved…
- Starting a countdown timer on my Wyze Watch 47 or Google Home Mini.
- Walking into the next room to trigger a motion event in front of the test camera.
- Returning to the first room to resume whatever I was doing before.
- Observing what happened to my test lights once the timer ended.
Every test I ran yesterday passed. 
I don’t know if that really answers your question, though. We might need more detail if there’s a specific problem you’re trying to solve.
I can do that. It might be later in the day. I might throw some more devices into my testing since a couple of other cameras showed up yesterday.