[Beginner Question] - Can I Control my home devices when I am away from home using ZigBee/Z-Wave?

Hi, I am moving out and I intend to make my new home a smart home.

So far I've noticed ZigBee and Z-Wave protocols have a better reputation than wi-fi, therefore I will try to stick to them (not sure there are a lot of options using Z-Wave in Brasil though).

Anyway, my only concern with these protocols is that they function locally, meaning they don't require internet to work.

So let's assume I am 30 mins from home and I want to turn my AC while on the car (or turn on any other device) would that be an issue or could I just command my home assistant like Alexa to do the job for me?

Bonus Question: I saw that many devices like light switches work like a repeater in the ZigBee protocol, does the same happen with Z-Wave?

Thank you all for your help.

Submitted by vinisavordelli

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