Then I also, and this is where I might've fucked up, I also right clicked and selected 'Print to PDF' to save a PDF of the webpage too.
Did you use a downloaded "offline" copy of segwitaddress.org? Or did you do all of this while connected to the internet?If you did all this while connected to the internet (or on a PC that was subsequently reconnected to the internet), then "the part you fucked up" was doing this online!
You should consider that paper wallet compromised and you should not use it. Great care needs to be taken when generating paper wallets to avoid any possibility of the private key(s) being compromised.Creating/storing "digital" copies of your key(s) using the "snipping" tool is also a very bad idea.
At the very least, the generating code should be run on an "offline" PC... preferably one that will never be connected to a network again.
