I've only hunted like 10 states at this point, but so far your statement to be inaccurate.
All states have virtually the exact same rules.
For the purpose of hunting, which is what's relevant to this thread, you can only hold a resident license in 1 state, you have to pay taxes (if applicable, have a driver's license or ID card from that state, and have your vehicle registered there, and have that state be primary address.
There are lifetime license, but that doesn't change residency, you are a non-resident with a lifetime license.
There are differences when it come to how long you have to live there to become a resident but that's not that important.
So yes you can be a snowbird, but you are limited to 1 state for residency.
I'm sure there are lots of folks violating the law, but that doesn't mean the law is opaque on this matter.