New to Linux/Ubuntu

Hello here.
So I am wanting to do a hobby project. I just bought me an older Dell PC, circa 2007 (the date listed in the BIOS menu), which has and install of Windows XP.
I am wanting to install Ubuntu. I am currently using as my primary device (typing currently) is Chromebook, with ChromeOS. Is Balena usable on my Chromebook?
Right now my Dell PC isn’t connected to the internet. I do not have a long enough cable (wife will also kill me if I run a 25 foot wire across the house). All of my devices in my house are wifi, haven’t used Ethernet in several years. I will soon be getting a Wifi adapter for my Dell PC. So what would be best? can I use my Chromebook to create a Ubuntu bootable USB Drive? Or should I just wait and get a wifi adapter? If this has been talked about can someone please share the links and/or info so I can read up about it?