Student Accommodation and WiFi Extenders

Hiya, I'm a soon-to-be student from Australia moving into student accommodation. WiFi is provided for 'free' (cost included with the rent) and I want to see if it's possible to get a range extender for my dorm room. One that has an ethernet cable. I want to improve internet performance by connecting it to whatever device I need via Ethernet. Is that something I can do with WiFi shared across a ton of rooms without being disruptive to the network? Can I do it at all?

For context, I'm looking at the Google Nest WiFi Pro Extender. It has an Ethernet slot built-in, so I'm hoping I'm understanding how exactly that works.

I'm not too knowledgeable on WiFi networking, so I apologise if this is a bit of an amateurish question.