Well, in Sony's own words, this is a device intended to be used in your home. And to use Sony's proprietary streaming technology, it needs to be in the same room.
It CAN, but used outside of the home, but again, that's not it's true intended purpose. It's streaming device, not a console. If it were intended to be an anywhere anytime device, it would have been a Vita 2.
If you have to be a "true tecky" or need to go through all these extra steps, then that's not it's intended purpose, as stated by Sony. Outside of the home, I've never seen or heard of any true success stories of streaming from a home device. You want that, to play on the go with a handheld, just get a Steam Deck or a Switch. Unless all you want to do is play on the couch in the same room as the PS5, I wouldn't get a Portal.