Wow. This video was much more challenging than I expected; I intended to release this yesterday and only finished it now. Here's the TL notes:
Nene POV:    • 【Stardew Valley】初見ですお願いします【ホロライブ/桃鈴ねね】  
Botan POV:    • 【Stardew Valley】ねぽらぼで自給自足生活スターデューバレー...  

1. What she actually said was not "neatfreak" but Ablood type. Basically, in America you have astrology believers that think being born in a certain month determines your future. In Japan, that's your blood type. Blood type A people are supposedly neatfreak / quite OCD, which is what she referred to.
2. Shiritori is a game where you take the last syllable from a Japanese word, and start the next one with it. IE: SuSHI, SHInoBU, BUkkoroSU etc. Nene failed this anyway so it doesn't matter.
3. "Ground drawings" literally meant "Geoglyph" but when I asked a few other translators if they knew this word, they suggested using ground drawing.

If there's anything more, I'll clarify it here / in a pin comment