Laptop wifi question that's so boring it goes full circle and becomes erotic

I have a laptop with a really shit wifi receiver in it. Router is downstairs at the front of the house.

My room is at the back and upstairs. Phone works a treat. Smart TV works a treat. Laptop can be iffy even with a plug in Netgear wifi booster in the room.

I rarely use my laptop but it would be nice to stream to the Smart TV via Chromecast instead of having to use a hard connection to it. Would something like one of these help?


And if so, what kind of tech spec thigns do I need to take into consideration?

Yes if you buy a good one

Dunno which the good ones are

Get one with a massive hard antenna that sticks right out