Flytraps are also outdoors plants, from the same region as Sarracenia (North America). They'll do fine for a while indoors given enough light but it's really not optimal.

Not in my experience, I had to start manually feeding my Venus fly traps. Otherwise they would die after some weeks. Never managed to keep one alive over winter.

Venus flytraps go dormant in the winter. Here's some info on their care:

https://www.flytrapcare.com/venus-fly-trap-dormancy/